Product Name

  • Name

    Ajmaline

  • EINECS 224-439-4
  • CAS No. 4360-12-7
  • Density 1.373 g/cm3
  • Solubility 489.7mg/L(30 oC)
  • Melting Point 189 °C
  • Formula C20H26N2O2
  • Boiling Point 519.406 °C at 760 mmHg
  • Molecular Weight 326.48
  • Flash Point 285.155 °C
  • Transport Information UN 1544
  • Appearance White solid
  • Safety 13-45-36
  • Risk Codes 25-20/21/22
  • Molecular Structure Molecular Structure of 4360-12-7 (Ajmaline)
  • Hazard Symbols HarmfulXn
  • Synonyms Rhytmaton;Ajmalan-17,21-.alpha.diol;Ajmalan-17,21-diol, (17R,21alpha)-, compound with methanol (1:1);(17R,21-alpha)-Ajmalan-17,21-diol;Rauwolfine;Merabitol;Rauwolfin;Cardiorythmine;Rytmalin;Cartagine;Aritmina;Gilurytmal;Tachmalin;
  • PSA 46.94000
  • LogP 1.55740

Synthetic route

diacetyl ajmaline
19775-56-5

diacetyl ajmaline

(+)-ajmaline
4360-12-7

(+)-ajmaline

Conditions
ConditionsYield
With potassium carbonate In methanol for 48h; Ambient temperature;93%
(6S,8S,9S,10S,1'S)-5-methyl-8-(1'-ethyl-oxomethyl)-9-(1',3'-dioxolan-2'-yl)-12-benzyl-6,7,8,9,10,11-hexahydro-6,10-imino-5H-cyclooct[b]-indole
143065-03-6

(6S,8S,9S,10S,1'S)-5-methyl-8-(1'-ethyl-oxomethyl)-9-(1',3'-dioxolan-2'-yl)-12-benzyl-6,7,8,9,10,11-hexahydro-6,10-imino-5H-cyclooct[b]-indole

(+)-ajmaline
4360-12-7

(+)-ajmaline

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: H2 / 10 percent Pd/C / 1,2-dimethoxy-ethane / 48 h / 760 Torr
2: DMAP / 1,2-dimethoxy-ethane / 2 h
3: aq. conc. HCl / acetic acid / 3 h / Ambient temperature
4: HCl(g) / 48 h / Ambient temperature
5: 35.6 percent / BF3*Et2O, H2 / PtO2 / CH2Cl2 / 24 h / 760 Torr
6: 93 percent / aq. K2CO3 / methanol / 48 h / Ambient temperature
View Scheme
21-O-acetylajmalal A ethylene acetal
210533-30-5

21-O-acetylajmalal A ethylene acetal

(+)-ajmaline
4360-12-7

(+)-ajmaline

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: aq. conc. HCl / acetic acid / 3 h / Ambient temperature
2: HCl(g) / 48 h / Ambient temperature
3: 35.6 percent / BF3*Et2O, H2 / PtO2 / CH2Cl2 / 24 h / 760 Torr
4: 93 percent / aq. K2CO3 / methanol / 48 h / Ambient temperature
View Scheme
(2S,3S,4R,6S,12aR,12bS,13S)-3-Ethyl-4,12a-dihydroxy-12-methyl-1,3,4,7,7a,12,12a,12b-octahydro-2H,6H-2,6-methano-indolo[2,3-a]quinolizine-13-carbaldehyde

(2S,3S,4R,6S,12aR,12bS,13S)-3-Ethyl-4,12a-dihydroxy-12-methyl-1,3,4,7,7a,12,12a,12b-octahydro-2H,6H-2,6-methano-indolo[2,3-a]quinolizine-13-carbaldehyde

(+)-ajmaline
4360-12-7

(+)-ajmaline

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: HCl(g) / 48 h / Ambient temperature
2: 35.6 percent / BF3*Et2O, H2 / PtO2 / CH2Cl2 / 24 h / 760 Torr
3: 93 percent / aq. K2CO3 / methanol / 48 h / Ambient temperature
View Scheme
C22H28N2O3

C22H28N2O3

(+)-ajmaline
4360-12-7

(+)-ajmaline

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: DMAP / 1,2-dimethoxy-ethane / 2 h
2: aq. conc. HCl / acetic acid / 3 h / Ambient temperature
3: HCl(g) / 48 h / Ambient temperature
4: 35.6 percent / BF3*Et2O, H2 / PtO2 / CH2Cl2 / 24 h / 760 Torr
5: 93 percent / aq. K2CO3 / methanol / 48 h / Ambient temperature
View Scheme
2-epihydroxydiacetylajmaline
210533-31-6

2-epihydroxydiacetylajmaline

(+)-ajmaline
4360-12-7

(+)-ajmaline

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 35.6 percent / BF3*Et2O, H2 / PtO2 / CH2Cl2 / 24 h / 760 Torr
2: 93 percent / aq. K2CO3 / methanol / 48 h / Ambient temperature
View Scheme
(+)-ajmaline
4360-12-7

(+)-ajmaline

(+)-21-Desoxy-dihydroajmalin

(+)-21-Desoxy-dihydroajmalin

Conditions
ConditionsYield
With hydrazine96%
(+)-ajmaline
4360-12-7

(+)-ajmaline

C20H25N3O

C20H25N3O

Conditions
ConditionsYield
With air; hydroxylamine hydrochloride In ethanol Ring cleavage; oxidation; Heating;89%
(+)-ajmaline
4360-12-7

(+)-ajmaline

propyl bromide
106-94-5

propyl bromide

N(4)-propylajmalinium bromide

N(4)-propylajmalinium bromide

Conditions
ConditionsYield
In ethanol at 70 - 75℃; for 6h;81.9%
1,2:3,4-di-O-isopropylidene-6-O-trifluoromethanesulfonyl-α-D-galactopyranose
71001-09-7

1,2:3,4-di-O-isopropylidene-6-O-trifluoromethanesulfonyl-α-D-galactopyranose

(+)-ajmaline
4360-12-7

(+)-ajmaline

C32H44N2O7

C32H44N2O7

Conditions
ConditionsYield
In N,N-dimethyl-formamide for 12h; Ambient temperature;80%
(+)-ajmaline
4360-12-7

(+)-ajmaline

(6S,13S)-4-ethyl-6,7,12,13-tetrahydro-7-methyl-6,13-imino-5H-pyrido[3',4':5,6]cyclooct[1,2-b]indole
38993-99-6

(6S,13S)-4-ethyl-6,7,12,13-tetrahydro-7-methyl-6,13-imino-5H-pyrido[3',4':5,6]cyclooct[1,2-b]indole

Conditions
ConditionsYield
With air; hydroxylamine hydrochloride In butan-1-ol Oxidation; ring cleavage; cyclization; Heating;30%
(+)-ajmaline
4360-12-7

(+)-ajmaline

19(S)-hydroxy-Nβ-methylraumacline
141810-20-0

19(S)-hydroxy-Nβ-methylraumacline

Conditions
ConditionsYield
Rauwolfia serpentina Benth. cell suspension culture;
Multi-step reaction with 13 steps
1: molecular sieves, H2SO4 / ethanol / 3 h / Heating
2: 1 N NaOH / CH2Cl2 / 0.5 h / Ambient temperature
3: 84 percent / CuCl2 / tetrahydrofuran; H2O / Ambient temperature; phosphate buffer pH 7
4: 71 percent / Et3N / CH2Cl2 / 2.5 h / 0 °C
5: 78 percent / N-bromosuccinimide / tetrahydrofuran / 2 h / -22 °C
6: 71 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene / dimethylformamide / 65 h / Ambient temperature
7: 98 percent / NaBH4 / methanol / 0.67 h / Ambient temperature
8: 100 percent / Et3N, p-dimethylaminopyridine / CH2Cl2 / 22 h / Ambient temperature
9: 1) BH3-Me2S, 2) 3 N aq. NaOH, 31percent H2O2 / 1) THF, r.t., 2.5 h, 2) 80 to 90 deg C, 1 h
10: 96 percent / n-Bu4NF / tetrahydrofuran / 40 h / Ambient temperature
11: 88 percent / Pb(OAc)4 / CH2Cl2 / 2.5 h / -70 °C
12: H2 / 10percent Pd/C / methanol / 4.5 h / 760 Torr
13: NaBHrCN, AcOH / H2O / 3 h
View Scheme
(+)-ajmaline
4360-12-7

(+)-ajmaline

ajmaline-21-carboxylic acid
115438-55-6

ajmaline-21-carboxylic acid

Conditions
ConditionsYield
With dihydrogen peroxide slightly acidic condition, on boiling water bath;
(+)-ajmaline
4360-12-7

(+)-ajmaline

(+)-Isoajmalin
6989-79-3

(+)-Isoajmalin

Conditions
ConditionsYield
With potassium hydroxide In methanol900 mg
(+)-ajmaline
4360-12-7

(+)-ajmaline

ajmaline-Nb-oxide
68622-80-0

ajmaline-Nb-oxide

Conditions
ConditionsYield
With dihydrogen peroxide Yield given;
(+)-ajmaline
4360-12-7

(+)-ajmaline

benzyl chloroformate
501-53-1

benzyl chloroformate

C28H32N2O4

C28H32N2O4

Conditions
ConditionsYield
Yield given. Multistep reaction;
(+)-ajmaline
4360-12-7

(+)-ajmaline

1,1-dimethylhydrazine
57-14-7

1,1-dimethylhydrazine

C22H32N4O
2552-93-4

C22H32N4O

Conditions
ConditionsYield
With 3 A molecular sieve; sulfuric acid In ethanol for 5h; Heating;
With molecular sieve; sulfuric acid In ethanol for 3h; Heating;
(+)-ajmaline
4360-12-7

(+)-ajmaline

methyl iodide
74-88-4

methyl iodide

Nb-methylajmaline

Nb-methylajmaline

Conditions
ConditionsYield
In acetonitrile for 1h; Heating;9.8 mg
bromopropionitrile
2417-90-5

bromopropionitrile

(+)-ajmaline
4360-12-7

(+)-ajmaline

C23H30N3O2(1+)*Br(1-)

C23H30N3O2(1+)*Br(1-)

2-(bromomethyl)tetrahydro-2H-pyran
34723-82-5, 130233-15-7, 130233-16-8

2-(bromomethyl)tetrahydro-2H-pyran

(+)-ajmaline
4360-12-7

(+)-ajmaline

C26H37N2O3(1+)*Br(1-)

C26H37N2O3(1+)*Br(1-)

1-Bromononane
693-58-3

1-Bromononane

(+)-ajmaline
4360-12-7

(+)-ajmaline

N(b)-nonylajmaline bromide

N(b)-nonylajmaline bromide

Conditions
ConditionsYield
In chloroform; acetonitrile for 8h; Heating;1.2 g
1-Iodooctane
629-27-6

1-Iodooctane

(+)-ajmaline
4360-12-7

(+)-ajmaline

C28H43N2O2(1+)*I(1-)

C28H43N2O2(1+)*I(1-)

1-bromo-hexane
111-25-1

1-bromo-hexane

(+)-ajmaline
4360-12-7

(+)-ajmaline

C26H39N2O2(1+)*Br(1-)

C26H39N2O2(1+)*Br(1-)

5-iodo-2-methylpent-2-ene
43161-11-1

5-iodo-2-methylpent-2-ene

(+)-ajmaline
4360-12-7

(+)-ajmaline

C26H37N2O2(1+)*I(1-)

C26H37N2O2(1+)*I(1-)

(+)-ajmaline
4360-12-7

(+)-ajmaline

1,3-dibromo-propane
109-64-8

1,3-dibromo-propane

C23H32BrN2O2(1+)*Br(1-)

C23H32BrN2O2(1+)*Br(1-)

methyl 5-(bromomethyl)-furan-2-carboxylate
70117-25-8

methyl 5-(bromomethyl)-furan-2-carboxylate

(+)-ajmaline
4360-12-7

(+)-ajmaline

C27H33N2O5(1+)*Br(1-)

C27H33N2O5(1+)*Br(1-)

1,4-dibromo-butane
110-52-1

1,4-dibromo-butane

(+)-ajmaline
4360-12-7

(+)-ajmaline

C24H34BrN2O2(1+)*Br(1-)

C24H34BrN2O2(1+)*Br(1-)

1-bromo dodecane
112-29-8

1-bromo dodecane

(+)-ajmaline
4360-12-7

(+)-ajmaline

C30H47N2O2(1+)*Br(1-)

C30H47N2O2(1+)*Br(1-)

Conditions
ConditionsYield
Heating;
ethyl bromide
74-96-4

ethyl bromide

(+)-ajmaline
4360-12-7

(+)-ajmaline

C22H31N2O2(1+)*Br(1-)

C22H31N2O2(1+)*Br(1-)

1-iodo-butane
542-69-8

1-iodo-butane

(+)-ajmaline
4360-12-7

(+)-ajmaline

C24H35N2O2(1+)*I(1-)

C24H35N2O2(1+)*I(1-)

(+)-ajmaline
4360-12-7

(+)-ajmaline

ethylene dibromide
106-93-4

ethylene dibromide

C22H30BrN2O2(1+)*Br(1-)

C22H30BrN2O2(1+)*Br(1-)

(+)-ajmaline
4360-12-7

(+)-ajmaline

1,2-Epoxy-3-bromopropane
3132-64-7

1,2-Epoxy-3-bromopropane

C23H31N2O3(1+)*Br(1-)

C23H31N2O3(1+)*Br(1-)

bromoundecane
693-67-4

bromoundecane

(+)-ajmaline
4360-12-7

(+)-ajmaline

C31H49N2O2(1+)*Br(1-)

C31H49N2O2(1+)*Br(1-)

Conditions
ConditionsYield
Heating;
1-Bromotetradecane
112-71-0

1-Bromotetradecane

(+)-ajmaline
4360-12-7

(+)-ajmaline

C34H55N2O2(1+)*Br(1-)

C34H55N2O2(1+)*Br(1-)

Conditions
ConditionsYield
Heating;
1-Iodoheptane
4282-40-0

1-Iodoheptane

(+)-ajmaline
4360-12-7

(+)-ajmaline

C27H41N2O2(1+)*I(1-)

C27H41N2O2(1+)*I(1-)

Conditions
ConditionsYield
Heating;

Ajmaline Specification

The Ajmaline, with the CAS registry number 4360-12-7, is also known as Ajmalan-17,21-diol, (17R,21alpha)-. It belongs to the product categories of Alkaloids; Intermediates & Fine Chemicals; Pharmaceuticals. Its EINECS registry number is 224-439-4. This chemical's molecular formula is C20H26N2O2 and molecular weight is 326.43. What's more, its systematic name is called (15α,17R,21α)-Ajmalan-17,21-diol. It should be stored in a sealed place. Ajmaline is an alkaloid that is class Ia antiarrhythmic agent. It is often used to bring out typical findings of ST elevations in patients suspected of having Brugada syndrome.

Physical properties about Ajmaline are: (1)ACD/LogP: 1.806; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.61; (4)ACD/LogD (pH 7.4): 1.10; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 2.75; (7)ACD/KOC (pH 5.5): 1.00; (8)ACD/KOC (pH 7.4): 45.24; (9)#H bond acceptors: 4; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 46.94 Å2; (13)Index of Refraction: 1.701; (14)Molar Refractivity: 92.025 cm3; (15)Molar Volume: 237.825 cm3; (16)Polarizability: 36.482×10-24cm3; (17)Surface Tension: 67.635 dyne/cm; (18)Density: 1.373 g/cm3; (19)Flash Point: 285.155 °C; (20)Enthalpy of Vaporization: 83.397 kJ/mol; (21)Boiling Point: 519.406 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25 °C.

When you are dealing with this chemical, you should be very careful. This chemical may cause damage to health and it is toxic if swallowed. It is harmful by inhalation, in contact with skin and if swallowed. Therefore, you should wear suitable protective clothing and keep away from food, drink and animal feeding stuffs. In case of accident or if you feel unwell seek medical advice immediately.

You can still convert the following datas into molecular structure:
(1) SMILES: CC[C@H]1[C@H]5C[C@@H]4N([C@@H]1O)[C@H]6C[C@]3(c2ccccc2N(C)[C@H]34)[C@H](O)C56
(2) InChI: InChI=1S/C20H26N2O2/c1-3-10-11-8-14-17-20(12-6-4-5-7-13(12)21(17)2)9-15(16(11)18(20)23)22(14)19(10)24/h4-7,10-11,14-19,23-24H,3,8-9H2,1-2H3/t10-,11+,14-,15-,16?,17-,18+,19+,20+/m0/s1
(3) InChIKey: CJDRUOGAGYHKKD-SXKXKDIKSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
bird - wild LD50 oral 178mg/kg (178mg/kg)   Archives of Environmental Contamination and Toxicology. Vol. 12, Pg. 355, 1983.
child LDLo oral 53125ug/kg (53.125mg/kg) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

GASTROINTESTINAL: NAUSEA OR VOMITING

LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA
Journal of Forensic Sciences. Vol. 33, Pg. 558, 1988.
guinea pig LDLo intravenous 28mg/kg (28mg/kg) CARDIAC: CHANGE IN RATE Farmaco, Edizione Scientifica. Vol. 19, Pg. 865, 1964.
man TDLo oral 32mg/kg (32mg/kg) CARDIAC: EKG CHANGES NOT DIAGNOSTIC OF ABOVE

BEHAVIORAL: GENERAL ANESTHETIC

LUNGS, THORAX, OR RESPIRATION: CYANOSIS
American Heart Journal. Vol. 70, Pg. 719, 1965.
mouse LD50 intraperitoneal 75mg/kg (75mg/kg)   National Technical Information Service. Vol. AD691-490,
mouse LD50 intravenous 21mg/kg (21mg/kg)   European Journal of Toxicology and Environmental Hygiene. Vol. 8, Pg. 188, 1975.
mouse LD50 oral 255mg/kg (255mg/kg) CARDIAC: CHANGE IN RATE Farmaco, Edizione Scientifica. Vol. 19, Pg. 865, 1964.
mouse LD50 subcutaneous 180mg/kg (180mg/kg) CARDIAC: CHANGE IN RATE Farmaco, Edizione Scientifica. Vol. 19, Pg. 865, 1964.
mouse LD50 unreported 220mg/kg (220mg/kg)   Pharmaceutical Chemistry Journal Vol. 21, Pg. 331, 1987.
quail LDLo oral 316mg/kg (316mg/kg)   Ecotoxicology and Environmental Safety. Vol. 6, Pg. 149, 1982.
rat LD50 intraperitoneal 94mg/kg (94mg/kg)   Pharmaceutical Chemistry Journal Vol. 21, Pg. 331, 1987.
rat LD50 intravenous 26mg/kg (26mg/kg) CARDIAC: OTHER CHANGES Pharmazie. Vol. 31, Pg. 36, 1976.
rat LD50 oral 360mg/kg (360mg/kg) BEHAVIORAL: ATAXIA

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)
Pharmazie. Vol. 31, Pg. 39, 1976.
rat LD50 subcutaneous 216mg/kg (216mg/kg) CARDIAC: CHANGE IN RATE Farmaco, Edizione Scientifica. Vol. 19, Pg. 865, 1964.
women LDLo oral 50mg/kg (50mg/kg)   Journal of Forensic Sciences. Vol. 33, Pg. 558, 1988.

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