Product Name

  • Name

    Ursodeoxycholic acid

  • EINECS 204-879-3
  • CAS No. 128-13-2
  • Article Data64
  • CAS DataBase
  • Density 1.128 g/cm3
  • Solubility practically insoluble in water
  • Melting Point 203-204 °C(lit.)
  • Formula C24H40O4
  • Boiling Point 547.1 °C at 760 mmHg
  • Molecular Weight 392.579
  • Flash Point 298.8 °C
  • Transport Information
  • Appearance white crystalline powder
  • Safety 24/25-36-26
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 128-13-2 (Ursodeoxycholic acid)
  • Hazard Symbols IrritantXi
  • Synonyms (4R)-4-[(3R,5S,7S,8R,9S,10R,13R,14S,17R)-3,7-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoate;Cholan-24-oic acid, 3,7-dihydroxy-, (3-.alpha.,5-.beta., 7-.beta.)-;Cholan-24-oic acid,3,7-dihydroxy-,(3R,5a,- 7a)-;UDCA;5.beta.-Chol-24-oic acid-3.alpha., 7.beta.-diol;Arsacol;Ursochol;Antigall;Urso (TN);Ursodiol;Antigall (TN);Actigall;Urso;Litursol;Deursil;Desocol;Ursodeoxycholic acid (JP14);Delursan;Ursodiol (USP);deoxy-;Urso Deoxy Cholic Acid;7beta-Hydroxylithocholic acid;Ursodeoxycholoc acid;
  • PSA 77.76000
  • LogP 4.47790

Synthetic route

3α,7β-dihydroxy-5β-cholan-24-oic acid methyl ester
10538-55-3

3α,7β-dihydroxy-5β-cholan-24-oic acid methyl ester

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With methanol; sodium methylate at 25℃;99%
With water; sodium hydroxide at 97℃; for 2h; Large scale;49.1 kg
With water; sodium hydroxide at 120℃; for 12h;20.7 g
With water; sodium hydroxide at 120℃; for 12h; Time;29.4 g
7-Ketolithocholic acid
4651-67-6

7-Ketolithocholic acid

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With glucose dehydrogenase; D-Glucose; NADPH; 7β-hydroxysteroid dehydrogenase In aq. phosphate buffer at 30℃; for 1h; pH=8; Concentration; pH-value; Enzymatic reaction;98%
With nicotinamide adenine dinucleotide phosphate; isopropyl alcohol In aq. phosphate buffer at 37℃; pH=7;93%
With potassium borohydride; potassium tert-butylate In isopropyl alcohol at 40℃; for 24h;92%
potassium ter.butylate

potassium ter.butylate

potassium 3,7-dioxo-5beta-cholanate

potassium 3,7-dioxo-5beta-cholanate

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With hydrogenchloride; hydrogen; aluminum nickel In water98%
C24H36O4

C24H36O4

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Stage #1: C24H36O4 With potassium tert-butylate In tert-butyl alcohol for 0.5h;
Stage #2: With palladium 10% on activated carbon; hydrogen In tert-butyl alcohol at 80℃; under 3750.38 Torr; for 12h; Solvent; Reagent/catalyst; Temperature;
96%
7-Ketolithocholic acid
4651-67-6

7-Ketolithocholic acid

A

chenodeoxycholic acid
474-25-9

chenodeoxycholic acid

B

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Stage #1: 7-Ketolithocholic acid With potassium tert-butylate; palladium(II) hydroxide; potassium hydroxide In isopropyl alcohol at 20℃; for 0.166667h;
Stage #2: With hydrogen In isopropyl alcohol at 40 - 80℃; Reagent/catalyst; Temperature;
A n/a
B 95%
With sodium tetrahydroborate; sodium hydrogencarbonate In water at 20℃; for 0.5h; var. reducing agents;A 94%
B 2%
With potassium In tert-butyl alcohol for 0.5h; Heating; var. reducing agents;A 6%
B 94%
(3α,5β,7β)-7-hydroxy-3-[(4-nitrobenzoyl)oxy]-5-cholen-24-acid methyl ester

(3α,5β,7β)-7-hydroxy-3-[(4-nitrobenzoyl)oxy]-5-cholen-24-acid methyl ester

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With sodium hydroxide In methanol; water at 20℃; for 6h;94%
3α-hydroxy-7-keto-5β-chol-11-en-24-oic acid

3α-hydroxy-7-keto-5β-chol-11-en-24-oic acid

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With potassium borohydride; potassium tert-butylate; hydrogen at 40℃; under 30003 Torr; for 24h;93%
With potassium borohydride; potassium tert-butylate; hydrogen In isopropyl alcohol at 40℃; under 30003 Torr; for 24h; Autoclave;93%
With potassium borohydride; potassium tert-butylate; hydrogen In isopropyl alcohol at 40℃; under 30003 Torr; for 24h;93%
(E)-7-hydroxy-3-oxo-4,6,22-choladienoic acid ethyl ester

(E)-7-hydroxy-3-oxo-4,6,22-choladienoic acid ethyl ester

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Stage #1: (E)-7-hydroxy-3-oxo-4,6,22-choladienoic acid ethyl ester In 2-methyltetrahydrofuran at 90℃; under 30003 Torr; for 24h; Autoclave;
Stage #2: With sodium t-butanolate In 2-methyltetrahydrofuran; isopropyl alcohol at 90℃; under 30003 Torr; for 24h; Solvent; Reagent/catalyst; Temperature; Autoclave;
87%
C26H36O4

C26H36O4

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Stage #1: C26H36O4 With hydrogen In 2-methyltetrahydrofuran at 90℃; under 30003 Torr; for 24h; Autoclave;
Stage #2: With sodium t-butanolate In 2-methyltetrahydrofuran; isopropyl alcohol at 90℃; for 24h; Solvent; Reagent/catalyst; Temperature;
87%
chenodeoxycholic acid
474-25-9

chenodeoxycholic acid

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With NAD In methanol; aq. phosphate buffer at 25℃; for 24h; pH=8;86%
With 7β-hydroxysteroid dehydrogenase; Sepharose-CL6B; TEA; nicotinamide adenine dinucleotide In water at 20℃; for 120h;75%
Multi-step reaction with 2 steps
1: potassium phosphate, pyruvate, dithiothreitol, NAD / H2O / Ambient temperature; lactic dehydrogenase, 7α-hydroxysteroid dehydrogenase
2: potassium phosphate, glucose, dithiothreitol, NADP / H2O / glucose dehydrogenase, 7β-hydroxysteroid dehydrogenase
View Scheme
Lithocholic acid
434-13-9

Lithocholic acid

A

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

B

3-keto-7β-hydroxy-5β-cholan-24-oic acid
77060-26-5

3-keto-7β-hydroxy-5β-cholan-24-oic acid

Conditions
ConditionsYield
With Gibberella zeae VKM F-2600 extract In methanol; aq. phosphate buffer at 29℃; for 122h; pH=7; Microbiological reaction;A 83%
B n/a
3α,7β-dihydroxy-12-oxo-5β-cholane-24-oic acid
81873-91-8

3α,7β-dihydroxy-12-oxo-5β-cholane-24-oic acid

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With hydrazine hydrate; potassium hydroxide; 2,2'-[1,2-ethanediylbis(oxy)]bisethanol at 110 - 135℃; Wolf-Kishner reduction;82%
methyl 3α-acetoxy-7-keto-5β-chol-11-enoate

methyl 3α-acetoxy-7-keto-5β-chol-11-enoate

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With potassium borohydride; potassium tert-butylate; hydrogen at 40℃; under 30003 Torr; for 24h;80%
Multi-step reaction with 2 steps
1: sodium hydroxide; water / methanol; tetrahydrofuran / 4 h / Reflux; Inert atmosphere
2: potassium tert-butylate; potassium borohydride; hydrogen / isopropyl alcohol / 24 h / 40 °C / 30003 Torr / Autoclave
View Scheme
7-ketochenodeoxycholic acid sodium salt

7-ketochenodeoxycholic acid sodium salt

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With 1,4-dihydronicotinamide adenine dinucleotide; 7β-hydroxysteroid dehydrogenase; 2-hydroxyethanethiol; ethylenediaminetetraacetic acid In phosphate buffer at 20℃; for 48h; pH=7;75%
ethyl 3α-benzoyloxy-7β-hydroxy-chol-5-en-24-oate

ethyl 3α-benzoyloxy-7β-hydroxy-chol-5-en-24-oate

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Stage #1: ethyl 3α-benzoyloxy-7β-hydroxy-chol-5-en-24-oate With palladium 10% on activated carbon; hydrogen; acetic acid In ethanol under 2844.39 Torr; for 24h;
Stage #2: With methanol; sodium hydroxide for 18h; Reflux;
71%
methyl 3,7-dioxocholan-24-oate
7753-72-2

methyl 3,7-dioxocholan-24-oate

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With ammonia; lithium In tetrahydrofuran; methanol at -50℃; for 1h;68%
methyl 3α-acetoxy-7-oxo-5β-cholan-24-oate
10452-65-0

methyl 3α-acetoxy-7-oxo-5β-cholan-24-oate

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With sodium In butan-1-ol at 20 - 60℃; for 2.25h; Inert atmosphere;62%
chenodeoxycholic acid
474-25-9

chenodeoxycholic acid

A

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

B

7-Ketolithocholic acid
4651-67-6

7-Ketolithocholic acid

Conditions
ConditionsYield
With air; Xanthomonas maltophilia CBS 827.97 In sodium hydroxide at 30℃; for 4h; pH=8; epimerisation;A 27%
B 23%
With Xanthomonas maltophilia In water at 30℃; for 24h; pH=8; anaerobic;A 27%
B 23%
3,7-diketocholanic acid
859-97-2

3,7-diketocholanic acid

A

chenodeoxycholic acid
474-25-9

chenodeoxycholic acid

B

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With aluminum isopropoxide; isopropyl alcohol
7-Ketolithocholic acid
4651-67-6

7-Ketolithocholic acid

sodium ethanolate
141-52-6

sodium ethanolate

A

chenodeoxycholic acid
474-25-9

chenodeoxycholic acid

B

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
at 200℃;
3,7-diketocholanic acid
859-97-2

3,7-diketocholanic acid

aluminum isopropoxide
555-31-7

aluminum isopropoxide

isopropyl alcohol
67-63-0

isopropyl alcohol

A

chenodeoxycholic acid
474-25-9

chenodeoxycholic acid

B

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

methyl 3-O-acetyl-7-O-mesylchenodeoxycholate
81857-23-0

methyl 3-O-acetyl-7-O-mesylchenodeoxycholate

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With potassium superoxide; 18-crown-6 ether In dimethyl sulfoxide for 3h; Yield given;
6A,6D-bis(2-naphthylsulfonyl)-γ-cyclodextrin ursodeoxycholic acid 1:1 complex

6A,6D-bis(2-naphthylsulfonyl)-γ-cyclodextrin ursodeoxycholic acid 1:1 complex

A

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

B

6A,6D-bis(2-naphthylsulfonyl)-γ-cyclodextrin

6A,6D-bis(2-naphthylsulfonyl)-γ-cyclodextrin

Conditions
ConditionsYield
In water; ethylene glycol at 25℃; Equilibrium constant; decomplexation;
6A,6E-bis(2-naphthylsulfonyl)-γ-cyclodextrin ursodeoxycholic acid 1:1 complex

6A,6E-bis(2-naphthylsulfonyl)-γ-cyclodextrin ursodeoxycholic acid 1:1 complex

A

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

B

6A,6E-bis(2-naphthylsulfonyl)-γ-cyclodextrin

6A,6E-bis(2-naphthylsulfonyl)-γ-cyclodextrin

Conditions
ConditionsYield
In water; ethylene glycol at 25℃; Equilibrium constant; decomplexation;
hydrogenchloride
7647-01-0

hydrogenchloride

7-Ketolithocholic acid
4651-67-6

7-Ketolithocholic acid

acetic acid
64-19-7

acetic acid

platinum

platinum

A

chenodeoxycholic acid
474-25-9

chenodeoxycholic acid

B

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Hydrogenation;
[3H] Sodium glycoursodeoxycholate
92411-07-9

[3H] Sodium glycoursodeoxycholate

A

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

B

glycine
56-40-6

glycine

Conditions
ConditionsYield
With chloylglycine hydrolase In phosphate buffer at 84℃; for 0.0833333h;
glycochenodeoxycholic acid sodium salt
16564-43-5

glycochenodeoxycholic acid sodium salt

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 100 percent Chromat. / chloylglycine hydrolase; β-mercaptoethanol; EDTA / aq. phosphate buffer / 3 h / 20 °C / pH 8
2: 75 percent / Sepharose-CL6B; 7β-hydroxysteroid dehydrogenase; TEA / NAD(+) / H2O / 120 h / 20 °C
View Scheme
sodium taurochenodeoxycholate
6009-98-9

sodium taurochenodeoxycholate

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 100 percent Chromat. / chloylglycine hydrolase; β-mercaptoethanol; EDTA / aq. phosphate buffer / 0.33 h / 20 °C / pH 8
2: 75 percent / Sepharose-CL6B; 7β-hydroxysteroid dehydrogenase; TEA / NAD(+) / H2O / 120 h / 20 °C
View Scheme
methyl 3α,7α-dihydroxy-12-oxo-5β-cholan-24-oate
10538-64-4

methyl 3α,7α-dihydroxy-12-oxo-5β-cholan-24-oate

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 52 percent / acetic acid / 12 h / Ambient temperature
2: 57 percent / NaBH4 / acetic acid / 3 h / Ambient temperature
3: pyridine / benzene
4: pyridine / Ambient temperature
5: KO2/18-crown-6 ether / dimethylsulfoxide / 3 h
View Scheme
N-Methyltaurine
107-68-6

N-Methyltaurine

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

3α,7β-dihydroxy-5β-cholan-24-oyl-N-methyltaurine

3α,7β-dihydroxy-5β-cholan-24-oyl-N-methyltaurine

Conditions
ConditionsYield
With triethylamine; 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride In N,N-dimethyl-formamide at 20℃; for 1h;100%
methanol
67-56-1

methanol

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

3α,7β-dihydroxy-5β-cholan-24-oic acid methyl ester
10538-55-3

3α,7β-dihydroxy-5β-cholan-24-oic acid methyl ester

Conditions
ConditionsYield
With toluene-4-sulfonic acid for 2.5h; Reflux;98%
With sulfuric acid at 50℃; for 3h;97%
With toluene-4-sulfonic acid at 65℃; for 2.5h;97%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

acetic anhydride
108-24-7

acetic anhydride

(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-diacetoxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic acid
6533-77-3

(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-diacetoxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic acid

Conditions
ConditionsYield
In pyridine at 20℃; for 12h;98%
With dmap In dichloromethane at 20℃; for 1h; Inert atmosphere;95%
With pyridine at 20℃; Inert atmosphere;92%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

4-hydroxypropiophenone
70-70-2

4-hydroxypropiophenone

C33H48O5

C33H48O5

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In dichloromethane at 10 - 20℃; for 2h; Temperature; Concentration;97.3%
formic acid
64-18-6

formic acid

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-bis(formyloxy)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic acid
6058-15-7, 6159-50-8

(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-bis(formyloxy)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic acid

Conditions
ConditionsYield
at 55℃; for 20h;96%
With perchloric acid96%
1) 65 deg C, 4 h, 2) 25 deg C, 20 h;95%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

ferric ursodeoxycholate

ferric ursodeoxycholate

Conditions
ConditionsYield
With iron(III) chloride; sodium hydroxide In water at 35℃; pH=8;95%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

tauroursodeoxycholic acid sodium salt
35807-85-3

tauroursodeoxycholic acid sodium salt

Conditions
ConditionsYield
With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; sodium hydroxide In water; acetonitrile; tert-butyl alcohol at 20 - 80℃;95%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

benzyl bromide
100-39-0

benzyl bromide

benzyl 3α,7β-dihydroxy-5β-cholan-24-oate
111992-93-9

benzyl 3α,7β-dihydroxy-5β-cholan-24-oate

Conditions
ConditionsYield
With potassium carbonate In acetonitrile at 80℃; for 3h;95%
With potassium carbonate In acetonitrile at 80℃; for 3h;95%
Stage #1: ursodeoxycholic acid With potassium hydrogencarbonate In N,N-dimethyl-formamide for 0.333333h;
Stage #2: benzyl bromide In N,N-dimethyl-formamide for 48h;
95%
With potassium carbonate In acetonitrile at 80℃; for 3h;95%
With caesium carbonate In acetonitrile for 4h; Reflux;82%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

Conditions
ConditionsYield
With samarium diiodide; water; triethylamine In tetrahydrofuran at 20℃; for 4h; Inert atmosphere;94%
With lithium aluminium tetrahydride
Multi-step reaction with 2 steps
1: thionyl chloride / 3.5 h / 20 °C / Reflux
2: sodium tetrahydroborate; ethanol / 20 °C
View Scheme
ethanol
64-17-5

ethanol

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

ethyl 3α,7β-dihydroxy-5β-cholan-24-oate
69519-36-4

ethyl 3α,7β-dihydroxy-5β-cholan-24-oate

Conditions
ConditionsYield
With toluene-4-sulfonic acid for 24h; Ambient temperature;93%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

2-aminoethanoic acid hydrochloride
6000-43-7

2-aminoethanoic acid hydrochloride

glycine ursodeoxycholic acid ethyl ester
115488-03-4

glycine ursodeoxycholic acid ethyl ester

Conditions
ConditionsYield
With triethylamine In acetone for 12h; Solvent; Time; Reflux;93%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

acetyl chloride
75-36-5

acetyl chloride

3α,7β-dihydroxy-5β-cholan-24-oic acid methyl ester
10538-55-3

3α,7β-dihydroxy-5β-cholan-24-oic acid methyl ester

Conditions
ConditionsYield
In methanol at 0 - 20℃; for 6h;92%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

A

3,7-bis(sulfooxy)ursodeoxycholic acid
88426-32-8

3,7-bis(sulfooxy)ursodeoxycholic acid

B

7-hydroxy-3-(sulfooxy)-(3α,5β,7β)-cholan-24-oic acid
59132-32-0, 64520-49-6, 68780-68-7, 68833-02-3, 124815-69-6, 68780-73-4

7-hydroxy-3-(sulfooxy)-(3α,5β,7β)-cholan-24-oic acid

C

7-(sulfooxy)ursodeoxycholic acid
74723-14-1

7-(sulfooxy)ursodeoxycholic acid

Conditions
ConditionsYield
With pyridine; sulfur trioxide pyridine complex at 0 - 20℃; for 0.166667h; other temperatures, other times, other reagent ratio;A 91.9%
B 4.1%
C 2.6%
With pyridine; sulfur trioxide pyridine complex at -5℃; for 0.166667h; Product distribution; other temperatures, other reaction times, other reagent ratio;A 25%
B 31.2%
C 25%
With pyridine; sulfur trioxide pyridine complex at -5℃; for 0.166667h; other temperatures, other times, other reagent ratio;A 25%
B 31.2%
C 25%
With pyridine; sulfur trioxide pyridine complex at -5℃; for 0.166667h; other temperatures, other times, other reagent ratio;A 25%
B 31.2%
C 25%
trimethyl-sulfo-ammonium betaine
63147-26-2

trimethyl-sulfo-ammonium betaine

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

ursodeoxycholic acid di-trimethylammonium 3,7-disulfate

ursodeoxycholic acid di-trimethylammonium 3,7-disulfate

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 40 - 90℃;91.6%
Conditions
ConditionsYield
Stage #1: ursodeoxycholic acid; glycine With N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline; sodium hydroxide In water; acetonitrile; tert-butyl alcohol at 20 - 80℃;
Stage #2: With hydrogenchloride In water pH=2;
91%
1-methyl-piperazine
109-01-3

1-methyl-piperazine

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

N1<(3α,5β,7β)3,7-dihydroxy-24-oxo-cholan-24-yl>N4 methyl-piperazine
86678-72-0

N1<(3α,5β,7β)3,7-dihydroxy-24-oxo-cholan-24-yl>N4 methyl-piperazine

Conditions
ConditionsYield
With tributyl-amine; chloroformic acid ethyl ester In 1,4-dioxane 10 deg C, 10 min then rt., 1 h;90%
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

3-keto-7β-hydroxy-5β-cholan-24-oic acid
77060-26-5

3-keto-7β-hydroxy-5β-cholan-24-oic acid

Conditions
ConditionsYield
With dipotassium hydrogenphosphate; D-glucose; Pseudomonas paucimobilis; yeast extracxt; peptone In water at 28℃; for 24h;90%
Multi-step reaction with 4 steps
1: triethylamine; DMAP / ethyl acetate / 10 h / Heating
2: 5percent NaOH / methanol / 1 h
3: Jones' reagent / acetone / 0.08 h
4: 95 percent / 20percent NaOH / 1 h / Heating
View Scheme
ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

arabinosyl cytosine
147-94-4

arabinosyl cytosine

(4R)-N-(1-((3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-furan-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)-(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanamide

(4R)-N-(1-((3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-furan-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)-(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanamide

Conditions
ConditionsYield
Stage #1: ursodeoxycholic acid With triethylamine; isobutyl chloroformate In N,N-dimethyl-formamide at -15℃; for 0.25h; Inert atmosphere;
Stage #2: arabinosyl cytosine With triethylamine In N,N-dimethyl-formamide at -15 - 20℃; for 0.5h; Inert atmosphere;
87%
Stage #1: ursodeoxycholic acid With triethylamine; isobutyl chloroformate In N,N-dimethyl-formamide at -15℃; for 0.0833333h;
Stage #2: arabinosyl cytosine With triethylamine In N,N-dimethyl-formamide at -15 - 20℃; for 2.5h;
pyrrolidine
123-75-1

pyrrolidine

ursodeoxycholic acid
128-13-2

ursodeoxycholic acid

(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)-1-(pyrrolidin-1-yl)pentan-1-one

(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)-1-(pyrrolidin-1-yl)pentan-1-one

Conditions
ConditionsYield
With triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In dichloromethane at 20℃; for 16h;87%
With triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In dichloromethane at 20℃; for 16h;87%

Ursodeoxycholic acid Chemical Properties

Molecule structure of Ursodeoxycholic acid (CAS NO.128-13-2):

IUPAC Name: (4R)-4-[(3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-Dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoic acid 
Molecular Weight: 392.572 g/mol
Molecular Formula: C24H40O4 
Density: 1.128 g/cm3 
Melting Point: 203-204 °C(lit.)
Boiling Point: 547.1 °C at 760 mmHg 
Flash Point: 298.8 °C
Index of Refraction: 1.543
Molar Refractivity: 109.65 cm3
Molar Volume: 347.8 cm3
Surface Tension: 46 dyne/cm 
Enthalpy of Vaporization: 95.01 kJ/mol
Vapour Pressure: 2.98E-14 mmHg at 25 °C 
Solubility Ethanol: 50 mg/mL, clear
Water Solubility: practically insoluble
XLogP3-AA: 4.9
H-Bond Donor: 3
H-Bond Acceptor: 4
Rotatable Bond Count: 4
Exact Mass: 392.29266
MonoIsotopic Mass: 392.29266
Topological Polar Surface Area: 77.8
Heavy Atom Count: 28
Canonical SMILES: CC(CCC(=O)O)C1CCC2C1(CCC3C2C(CC4C3(CCC(C4)O)C)O)C
Isomeric SMILES: C[C@H](CCC(=O)O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2[C@H](C[C@H]4C@@]3(CC[C@H](C4)O)C)O)C
InChI: InChI=1S/C24H40O4/c1-14(4-7-21(27)28)17-5-6-18-22-19(9-11-24(17,18)3)23(2)10-8-16(25)12-15(23)13-20(22)26/h14-20,22,25-26H,4-13H2,1-3H3,(H,27,28)/t14-,15+,16-,17-,18+,19+,20+,22+,23+,24-/m1/s1
InChIKey: RUDATBOHQWOJDD-UZVSRGJWSA-N
EINECS: 204-879-3
Product Categories: Bile Acids; Biochemistry; Steroids; Intermediates & Fine Chemicals; Pharmaceuticals; API's

Ursodeoxycholic acid Uses

 Ursodeoxycholic acid (CAS NO.128-13-2) can be used as an anticholelithogenic.

Ursodeoxycholic acid Production

 Ursodeoxycholic acid is found in large quantities in bear bile.

Ursodeoxycholic acid Toxicity Data With Reference

1.    

mmo-sat 40 mg/L

    MUREAV    Mutation Research. 158 (1985),45.
2.    

orl-rat TDLo:11,900 mg/kg (4-20D preg):TER

    AIPTAK    Archives Internationales de Pharmacodynamie et de Therapie. 246 (1980),149.
3.    

orl-rat LD50:4600 mg/kg

    BCFAAI    Bollettino Chimico Farmaceutico. 126 (1987),282.
4.    

ipr-rat LD50:890 mg/kg

    NIIRDN    “Drugs in Japan. Ethical Drugs, 6th Edition 1982“ Edited by Japan Pharmaceutical Information Center. 6 (1982),95.
5.    

ivn-rat LD50:310 mg/kg

    NIIRDN    “Drugs in Japan. Ethical Drugs, 6th Edition 1982“ Edited by Japan Pharmaceutical Information Center. 6 (1982),95.
6.    

ivn-mus LD50:240 mg/kg

    NIIRDN    “Drugs in Japan. Ethical Drugs, 6th Edition 1982“ Edited by Japan Pharmaceutical Information Center. 6 (1982),95.

Ursodeoxycholic acid Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25-36-26 
S24/25:Avoid contact with skin and eyes. 
S36:Wear suitable protective clothing. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 2
RTECS: FZ2000000
F: 10
Poison by intraperitoneal and intravenous routes. Experimental teratogenic and reproductive effects. Mutation data reported. Stimulates the flow of bile to the duodenum (a cholagogic). When heated to decomposition it emits acrid smoke and irritating fumes.

Ursodeoxycholic acid Specification

 Ursodeoxycholic acid (CAS NO.128-13-2) is also named as 17-beta-(1-Methyl-3-carboxypropyl)etiocholane-3-alpha,7-beta-diol ; 3,7-Dihydroxycholan-24-oic acid ; 3-alpha,7-beta-Dihydroxy-5-beta-cholanoic acid ; 3-alpha,7-beta-Dihydroxycholanic acid ; 3-alpha,7-beta-Dioxycholanic acid ; 3alpha,7beta-Dihydroxy-5beta-cholan-24-oic acid ; 4-10-00-01604 (Beilstein Handbook Reference) ; 7-beta-Hydroxylithocholic acid ; Actigall ; Arsacol ; BRN 3219888 ; CCRIS 5502 ; Cholit-ursan ; Delursan ; Destolit ; Deursil ; Litursol ; Lyeton ; NSC 657950 ; NSC 683769 ; Peptarom ; Solutrat ; UNII-724L30Y2QR ; UrSO ; Ursacol ; Urso 250 ; Urso DS ; Urso Forte ; Ursobilin ; Ursochol ; Ursocholic acid, deoxy- ; Ursodamor ; Ursodeoxycholate ; Ursodiol ; Ursofalk ; Ursolvan . Ursodeoxycholic acid (CAS NO.128-13-2) is white crystalline powder.

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