Product Name

  • Name

    Clavulanic acid

  • EINECS 261-069-2
  • CAS No. 58001-44-8
  • Article Data18
  • CAS DataBase
  • Density 1.65 g/cm3
  • Solubility Soluble in water
  • Melting Point
  • Formula C8H9NO5
  • Boiling Point 545.8 °C at 760 mmHg
  • Molecular Weight 199.163
  • Flash Point 283.9 °C
  • Transport Information
  • Appearance Colorless needle-like crystal
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 58001-44-8 (Clavulanic acid)
  • Hazard Symbols
  • Synonyms (Z)-(2R,5R)-3-(2-Hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo(3.2.0)heptane-2-carboxylic acid;Acide clavulanique;Acidum clavulanicum;Antibiotic MM 14151;BRL 14151;BRN 0787059;Clavulansaeure;MM 14151;UNII-23521W1S24;
  • PSA 87.07000
  • LogP -1.15770

Synthetic route

Benzyl Clavulanate
57943-84-7

Benzyl Clavulanate

clavulanic acid
58001-44-8

clavulanic acid

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In ethanol under 760 Torr; for 0.75h; Ambient temperature;84%

A

C8H8(3)HNO5

C8H8(3)HNO5

B

clavulanic acid
58001-44-8

clavulanic acid

Conditions
ConditionsYield
With cultures of Streptomyces clavuligerus (ATCC 27064) in a glycerol-based fermentation medium Product distribution; labelling studies also with incorporation (14)C, acid isolated as p-bromobenzyl ester;
(2RS,5RS)-<5-(3)H>Ornithine

(2RS,5RS)-<5-(3)H>Ornithine

A

C8H8(3)HNO5

C8H8(3)HNO5

B

clavulanic acid
58001-44-8

clavulanic acid

Conditions
ConditionsYield
With cultures of Streptomyces clavuligerus (ATCC 27064) in a glycerol-based fermentation medium Product distribution; labelling studies also with incorporation (14)C, acid isolated as p-bromobenzyl ester;
(3R,5R) clavulanate-9-aldehyde

(3R,5R) clavulanate-9-aldehyde

clavulanic acid
58001-44-8

clavulanic acid

Conditions
ConditionsYield
Streptomyces clavuligerus SC 2;

A

(2S,5S)-3-[2-(2-Acetylamino-acetylamino)-eth-(Z)-ylidene]-7-oxo-4-oxa-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid

(2S,5S)-3-[2-(2-Acetylamino-acetylamino)-eth-(Z)-ylidene]-7-oxo-4-oxa-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid

B

clavulanic acid
58001-44-8

clavulanic acid

Conditions
ConditionsYield
Streptomyces clavuligerus; examination of incorporation by labelled <5-(14)C, 5-(3)H>ornithine;
methyl clavulanate
57943-82-5

methyl clavulanate

clavulanic acid
58001-44-8

clavulanic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 70 percent / sodium hydroxide / H2O / 1.17 h / 0 °C
2: 69 percent / dimethylformamide / 1.5 h / Ambient temperature
3: 84 percent / H2 / palladium on carbon / ethanol / 0.75 h / 760 Torr / Ambient temperature
View Scheme
potassium clavulanate
57943-81-4

potassium clavulanate

clavulanic acid
58001-44-8

clavulanic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 69 percent / dimethylformamide / 1.5 h / Ambient temperature
2: 84 percent / H2 / palladium on carbon / ethanol / 0.75 h / 760 Torr / Ambient temperature
View Scheme
sodium 3-oxoethylidene-7-oxo-4-oxa-1-azabicyclo-[3.2.0] heptane-2-carboxylate

sodium 3-oxoethylidene-7-oxo-4-oxa-1-azabicyclo-[3.2.0] heptane-2-carboxylate

clavulanic acid
58001-44-8

clavulanic acid

Conditions
ConditionsYield
With NADPH at 26℃; pH=7.0;
N,N-diisopropyl-1,2-ethanediamine
4013-94-9

N,N-diisopropyl-1,2-ethanediamine

clavulanic acid
58001-44-8

clavulanic acid

N,N'-diisopropylethylenediammonium diclavulanate

N,N'-diisopropylethylenediammonium diclavulanate

Conditions
ConditionsYield
In methanol; water; ethyl acetate for 0.25h;96%
In ethyl acetate; isopropyl alcohol84%
In methanol; ethyl acetate81%
N-tert-butylbenzylamine
3378-72-1

N-tert-butylbenzylamine

clavulanic acid
58001-44-8

clavulanic acid

C8H9NO5*C11H17N

C8H9NO5*C11H17N

Conditions
ConditionsYield
In ethyl acetate83%
In ethanol; ethyl acetate for 1h;68%
In ethyl acetate; isopropyl alcohol67%
1-Adamantanamine
768-94-5

1-Adamantanamine

clavulanic acid
58001-44-8

clavulanic acid

(2R,5R)-3-[2-Hydroxy-eth-(Z)-ylidene]-7-oxo-4-oxa-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid; compound with adamantan-1-ylamine
66069-33-8

(2R,5R)-3-[2-Hydroxy-eth-(Z)-ylidene]-7-oxo-4-oxa-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid; compound with adamantan-1-ylamine

Conditions
ConditionsYield
In ethyl acetate81%
In ethanol; ethyl acetate80%
In methanol; ethyl acetate for 1h;76%
In ethyl acetate; isopropyl alcohol76%
tert-butylamine
75-64-9

tert-butylamine

clavulanic acid
58001-44-8

clavulanic acid

clavulanic acid tert-butylamine
66069-34-9

clavulanic acid tert-butylamine

Conditions
ConditionsYield
In ethyl acetate81%
In ethyl acetate; isopropyl alcohol for 1h;77%
In ethanol; ethyl acetate43%
Stage #1: clavulanic acid With ammonium sulfate In water; ethyl acetate at 5℃; pH=1.30;
Stage #2: tert-butylamine In methanol; ethyl acetate at 5℃; for 2h; pH-value; Concentration;
tert-Octylamine
107-45-9

tert-Octylamine

clavulanic acid
58001-44-8

clavulanic acid

(2R,5R)-3-[2-Hydroxy-eth-(Z)-ylidene]-7-oxo-4-oxa-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid; compound with 1,1,3,3-tetramethyl-butylamine
66069-32-7

(2R,5R)-3-[2-Hydroxy-eth-(Z)-ylidene]-7-oxo-4-oxa-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid; compound with 1,1,3,3-tetramethyl-butylamine

Conditions
ConditionsYield
In ethyl acetate80%
In ethyl acetate; isopropyl alcohol for 1h;67%
In ethanol; ethyl acetate35%
clavulanic acid
58001-44-8

clavulanic acid

methyl-4-aza-8-hydroxy-6-oxo-oct-2-enoate
83670-77-3

methyl-4-aza-8-hydroxy-6-oxo-oct-2-enoate

Conditions
ConditionsYield
With methanol; diethylamine for 0.166667h; Ambient temperature;78%
clavulanic acid
58001-44-8

clavulanic acid

methyl clavulanate
57943-82-5

methyl clavulanate

Conditions
ConditionsYield
In ethanol Ambient temperature;75%
clavulanic acid
58001-44-8

clavulanic acid

9-chloro-9-deoxyclavulanic acid
477947-66-3

9-chloro-9-deoxyclavulanic acid

Conditions
ConditionsYield
With pyridine; methanesulfonyl chloride In acetonitrile at 25℃; for 24h;75%
benzylamine
100-46-9

benzylamine

clavulanic acid
58001-44-8

clavulanic acid

N-benzylclavulanamide
62868-57-9

N-benzylclavulanamide

Conditions
ConditionsYield
With sodium hydroxide; dicyclohexyl-carbodiimide In tetrahydrofuran; dichloromethane; ethyl acetate67%
N,N'-diethylethylenediamine
111-74-0

N,N'-diethylethylenediamine

clavulanic acid
58001-44-8

clavulanic acid

C6H16N2*2C8H9NO5

C6H16N2*2C8H9NO5

Conditions
ConditionsYield
In ethanol; ethyl acetate for 0.5h;61%
diazodiphenylmethane
908093-98-1

diazodiphenylmethane

clavulanic acid
58001-44-8

clavulanic acid

benzhydryl clavulanate
64018-86-6

benzhydryl clavulanate

Conditions
ConditionsYield
In tetrahydrofuran Ambient temperature;60%
clavulanic acid
58001-44-8

clavulanic acid

phenol
108-95-2

phenol

phenyl clavulanate
57943-88-1

phenyl clavulanate

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In acetonitrile Ambient temperature;59%
N,N'-Dibenzylethylenediamine
140-28-3

N,N'-Dibenzylethylenediamine

clavulanic acid
58001-44-8

clavulanic acid

2C8H9NO5*C16H20N2

2C8H9NO5*C16H20N2

Conditions
ConditionsYield
In ethanol; ethyl acetate for 1h;54%
In ethyl acetate; isopropyl alcohol31%
In ethyl acetate3%
SEC-BUTYLAMINE
33966-50-6

SEC-BUTYLAMINE

clavulanic acid
58001-44-8

clavulanic acid

C4H11N*C8H9NO5

C4H11N*C8H9NO5

Conditions
ConditionsYield
In ethanol; ethyl acetate for 1h;52.6%
In ethyl acetate; isopropyl alcohol52%
In ethyl acetate8%
2-(2-Hydroxyethyl)pyridine
103-74-2

2-(2-Hydroxyethyl)pyridine

clavulanic acid
58001-44-8

clavulanic acid

2-(2-pyridyl)ethyl clavulanate
91022-06-9

2-(2-pyridyl)ethyl clavulanate

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In acetonitrile Ambient temperature;50%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

clavulanic acid
58001-44-8

clavulanic acid

N,N,N',N'-tetramethylethylenediammonium diclavulanate

N,N,N',N'-tetramethylethylenediammonium diclavulanate

Conditions
ConditionsYield
In ethyl acetate; isopropyl alcohol for 1h;37%
In ethyl acetate30%
clavulanic acid
58001-44-8

clavulanic acid

A

methyl (E)-3-(diethylamino)-2-propenoate
58243-07-5

methyl (E)-3-(diethylamino)-2-propenoate

B

methyl 3-(2-hydroxyethyl)-pyrrole-4-carboxylate
83670-73-9

methyl 3-(2-hydroxyethyl)-pyrrole-4-carboxylate

C

methyl-4-aza-8-hydroxy-6-oxo-oct-2-enoate
83670-77-3

methyl-4-aza-8-hydroxy-6-oxo-oct-2-enoate

Conditions
ConditionsYield
With diethylamine In methanol for 48h; Ambient temperature;A 20%
B 14%
C 18%
With Diethyl amine In methanol for 48h; Ambient temperature;A 20%
B 14%
C 18%
para-thiocresol
106-45-6

para-thiocresol

clavulanic acid
58001-44-8

clavulanic acid

p-tolyl thioclavulanate
91022-05-8

p-tolyl thioclavulanate

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In acetonitrile Ambient temperature;17%
clavulanic acid
58001-44-8

clavulanic acid

A

(E)-(5R)-3-(2-hydroxyethylidene)-4-oxa-1-azabicyclo<3.2.0>heptan-7-one

(E)-(5R)-3-(2-hydroxyethylidene)-4-oxa-1-azabicyclo<3.2.0>heptan-7-one

B

(Z)-(5R)-3-(2-hydroxyethylidene)-4-oxa-1-azabicyclo<3.2.0>heptan-7-one

(Z)-(5R)-3-(2-hydroxyethylidene)-4-oxa-1-azabicyclo<3.2.0>heptan-7-one

Conditions
ConditionsYield
With mercury(II) diacetate In 1,2-dimethoxyethane 1) r.t., 15 min, 2) 90-95 deg C (bath), 20 min;A 5%
B 5.5%
clavulanic acid
58001-44-8

clavulanic acid

(5R)-7-oxo-3-vinyl-4-oxa-1-azabicyclo[3.2.0]hept-2-ene
71019-00-6

(5R)-7-oxo-3-vinyl-4-oxa-1-azabicyclo[3.2.0]hept-2-ene

Conditions
ConditionsYield
With N,N-dimethyl-formamide dimethyl acetal In tetrahydrofuran
With N,N-dimethyl-formamide dimethyl acetal In tetrahydrofuran for 0.133333h; Ambient temperature; Yield given;
With N,N-dimethyl-formamide dimethyl acetal
benzyl chloroformate
501-53-1

benzyl chloroformate

clavulanic acid
58001-44-8

clavulanic acid

1-benzyloxycarbonylamino-4-hydroxybutan-2-one
92632-80-9

1-benzyloxycarbonylamino-4-hydroxybutan-2-one

Conditions
ConditionsYield
With hydrogenchloride; water; sodium hydrogencarbonate 1.) 2 h, 2.) water, THF, ice-cooling, 40 min; Yield given. Multistep reaction;
3-chloro-benzenecarboperoxoic acid
937-14-4

3-chloro-benzenecarboperoxoic acid

clavulanic acid
58001-44-8

clavulanic acid

(Z)-(3S,5R)-2-(2-hydroxyethylidene)-3-(m-chlorobenzoyloxy)clavam
71916-37-5

(Z)-(3S,5R)-2-(2-hydroxyethylidene)-3-(m-chlorobenzoyloxy)clavam

Conditions
ConditionsYield
With dicyclohexyl-carbodiimide In 1,2-dimethoxyethane; dichloromethane 1.) 0 deg C, 3 h, 2.) room temperature, 15 h;60 mg
methanol
67-56-1

methanol

clavulanic acid
58001-44-8

clavulanic acid

A

methyl clavulanate
57943-82-5

methyl clavulanate

B

(Z)-(2R)-5-(2-hydroxyethylidene)-2-methoxycarbonylmethyl-2,5-dihydro-oxazole
88367-33-3

(Z)-(2R)-5-(2-hydroxyethylidene)-2-methoxycarbonylmethyl-2,5-dihydro-oxazole

C

(Z)-(3S,5R)-2-(2-hydroxyethylidene)-3-methoxyclavam
88391-46-2

(Z)-(3S,5R)-2-(2-hydroxyethylidene)-3-methoxyclavam

Conditions
ConditionsYield
With triethylamine at -30℃; for 0.833333h; electrolysis: platinum electrodes, I=200-250 mA;A 5 mg
B 75 mg
C 10 mg
With triethylamine at -30℃; for 0.833333h; electrolysis: platinum electrodes, current 200-250 mA;A 5 mg
B 75 mg
C 10 mg
methanol
67-56-1

methanol

clavulanic acid
58001-44-8

clavulanic acid

A

methyl clavulanate
57943-82-5

methyl clavulanate

B

(Z)-(3S,5R)-2-(2-hydroxyethylidene)-3-methoxyclavam
88391-46-2

(Z)-(3S,5R)-2-(2-hydroxyethylidene)-3-methoxyclavam

C

(E)-(3S,5R)-3-acetoxy-2-formylmethyleneclavam
71916-39-7, 88391-48-4, 88391-49-5

(E)-(3S,5R)-3-acetoxy-2-formylmethyleneclavam

D

(Z)-(3S,5R)-3-acetoxy-2-formylmethyleneclavam
88391-49-5

(Z)-(3S,5R)-3-acetoxy-2-formylmethyleneclavam

Conditions
ConditionsYield
With triethylamine at -30℃; for 0.833333h; Product distribution; electrolysis, platinum electrodes, current 200-250 mA; reactions of oxidative decarboxylation ( electrolysis, with Pb(OAc)4, decarboxylative rearrangement of diacyl peroxide) of clavulanic acid and its methyl ether;A 5 mg
B 10 mg
C n/a
D n/a
lead(IV) tetraacetate
546-67-8

lead(IV) tetraacetate

clavulanic acid
58001-44-8

clavulanic acid

A

(Z)-(3S,5R)-3-acetoxy-2-(2-hydroxyethylidene)clavam
88391-50-8

(Z)-(3S,5R)-3-acetoxy-2-(2-hydroxyethylidene)clavam

B

(Z)-(3S,5R)-3-acetoxy-2-(2-acetoxyethylidene)clavam
88391-47-3

(Z)-(3S,5R)-3-acetoxy-2-(2-acetoxyethylidene)clavam

C

(E)-(3S,5R)-3-acetoxy-2-formylmethyleneclavam
71916-39-7, 88391-48-4, 88391-49-5

(E)-(3S,5R)-3-acetoxy-2-formylmethyleneclavam

D

(Z)-(3S,5R)-3-acetoxy-2-formylmethyleneclavam
88391-49-5

(Z)-(3S,5R)-3-acetoxy-2-formylmethyleneclavam

Conditions
ConditionsYield
In 1,2-dimethoxyethane; benzene at 70℃; for 0.333333h;A 145 mg
B 20 mg
C n/a
D n/a
In 1,2-dimethoxyethane; benzene at 70℃; for 0.333333h; Yields of byproduct given;A 145 mg
B 20 mg
C n/a
D n/a
In 1,2-dimethoxyethane; benzene at 70℃; for 0.333333h; Yield given. Title compound not separated from byproducts;A 145 mg
B 20 mg
C n/a
D n/a

Clavulanic acid History

 Clavulanic acid was discovered around 1974/75 by British scientists working at the drug company Beecham. After several attempts, Beecham finally filed for US patent protection for the drug in 1981, and U.S. Patents 4,525,352, 4,529,720 and 4,560,552 were granted in 1985.

Clavulanic acid Specification

The Clavulanic acid with CAS registry number of 58001-44-8 is also known as 4-Oxa-1-azabicyclo[3.2.0]heptane-2-carboxylicacid, 3-(2-hydroxyethylidene)-7-oxo-, (2R,3Z,5R)-. The IUPAC name is (2R,3Z,5R)-3-(2-Hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylic acid. It belongs to product categories of Antibiotics. Its EINECS registry number is 261-069-2. In addition, the formula is C8H9NO5 and the molecular weight is 199.16. This chemical is a colorless needle-like crystal that soluble in water. It is a beta-lactamase inhibitor and used to overcome resistance in bacteria. What's more, it can be prepared by alkylation and chlorination decarboxylation reaction of 3-methylthiopropyllactam.

Physical properties about Clavulanic acid are: (1)ACD/BCF (pH 5.5): 1; (2)ACD/BCF (pH 7.4): 1; (3)ACD/KOC (pH 5.5): 1; (4)ACD/KOC (pH 7.4): 1; (5)#H bond acceptors: 6; (6)#H bond donors: 2; (7)#Freely Rotating Bonds: 3; (8)Index of Refraction: 1.644; (9)Molar Refractivity: 43.56 cm3; (10)Molar Volume: 120.2 cm3; (11)Surface Tension: 82.2 dyne/cm; (12)Density: 1.65 g/cm3; (13)Flash Point: 283.9 °C; (14)Enthalpy of Vaporization: 94.82 kJ/mol; (15)Boiling Point: 545.8 °C at 760 mmHg; (16)Vapour Pressure: 3.45E-14 mmHg at 25 °C.

Uses of Clavulanic acid: it is used to produce 2-(2-pyridyl)ethyl clavulanate by reaction with 2-pyridin-2-yl-ethanol. The reaction occurs with reagent dicyclohexylcarbodi-imide and solvent acetonitrile with ambient temperature. The yield is about 50%.

Clavulanic acid is used to produce 2-(2-pyridyl)ethyl clavulanate by reaction with 2-pyridin-2-yl-ethanol.

When you are using this chemical, please be cautious about it. As a chemical, it is irritating to eyes, respiratory system and skin. During using it, wear suitable protective clothing, gloves and eye/face protection. Avoid contact with skin and eyes. After using it, take off immediately all contaminated clothing. If contact with eyes accidently, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: C1C2N(C1=O)C(C(=CCO)O2)C(=O)O
2. Isomeric SMILES: C1[C@@H]2N(C1=O)[C@H](/C(=C/CO)/O2)C(=O)O
3. InChI: InChI=1S/C8H9NO5/c10-2-1-4-7(8(12)13)9-5(11)3-6(9)14-4/h1,6-7,10H,2-3H2,(H,12,13)/b4-1-/t6-,7-/m1/s1
4. InChIKey: HZZVJAQRINQKSD-PBFISZAISA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 1531mg/kg (1531mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 16, Pg. 590, 1985.
mouse LD50 intravenous 4gm/kg (4000mg/kg)   "CRC Handbook of Antibiotic Compounds," Vols.1- , Berdy, J., Boca Raton, FL, CRC Press, 1980Vol. 4(1), Pg. 129, 1980.
mouse LD50 oral 4526mg/kg (4526mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 16, Pg. 590, 1985.
mouse LD50 subcutaneous 2185mg/kg (2185mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 16, Pg. 590, 1985.
rat LD50 intraperitoneal 1399mg/kg (1399mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 16, Pg. 590, 1985.
rat LD50 oral 7936mg/kg (7936mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 16, Pg. 590, 1985.
rat LD50 subcutaneous 1393mg/kg (1393mg/kg)   Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 16, Pg. 590, 1985.

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