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1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester

CAS No.
3543-73-5
Chemical Name:
1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester
Synonyms
ethyl 4-(5-amino-1-methyl-1H-benzo[d]imidazol-2-yl)butanoate;5-AMino-1-Methyl-;Bendamustine Intermediate;1-Methyl-5-amino-1H-benzimidazole-2;BendaMustine hydrochloride interMediate;endamustine Dideschloroethyl Ethyl Ester;BendaMustine Dideschloroethyl Ethyl Ester;Bendamustine hydrochloride Intermediates 2;4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate;Ethyl 5-amino-1-methyl-1H-benzimidazole-2-butanoate
CBNumber:
CB62485092
Molecular Formula:
C14H19N3O2
Molecular Weight:
261.32
MDL Number:
MFCD09840909
MOL File:
3543-73-5.mol
Last updated:2024-03-25 09:59:57

1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester Properties

Melting point 130-135°C
Boiling point 471.6±25.0 °C(Predicted)
Density 1.21±0.1 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2–8 °C
solubility Chloroform (Slightly), Ethyl Acetate (Slightly)
form Solid
pka 6.73±0.10(Predicted)
color Off-White to Pale Beige

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P305+P351+P338
HS Code  2933998090

1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC M285645 1-Methyl-5-amino-1H-benzimidazole-2-butanoicAcidEthylEster 3543-73-5 5mg $60 2021-12-16 Buy
Matrix Scientific 102756 Ethyl 4-(5-amino-1-methyl-1H-1,3-benzimidazol-2-yl)butanoate >97% 3543-73-5 1g $92 2021-12-16 Buy
AK Scientific J97551 1-Methyl-5-amino-1H-benzimidazole-2-butanoicacidethylester 3543-73-5 1g $45 2021-12-16 Buy
Matrix Scientific 102756 Ethyl 4-(5-amino-1-methyl-1H-1,3-benzimidazol-2-yl)butanoate >97% 3543-73-5 5g $342 2021-12-16 Buy
SynQuest Laboratories 4H58-1-CV Ethyl 4-(5-amino-1-methyl-1H-1,3-benzimidazol-2-yl)butanoate 3543-73-5 1g $436 2021-12-16 Buy
Product number Packaging Price Buy
M285645 5mg $60 Buy
102756 1g $92 Buy
J97551 1g $45 Buy
102756 5g $342 Buy
4H58-1-CV 1g $436 Buy

1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester Chemical Properties,Uses,Production

Chemical Properties

Brown Solid

Uses

1-Methyl-5-amino-1H-benzimidazole-2-butanoic Acid Ethyl Ester is a Bendamustine impurity.

Synthesis

In the hydrogenation reaction kettle by adding 50 g 1 - methyl -5 - nitro - 1H - benzimidazole -2 - butyric acid ethyl ester, 2.5 g 5% palladium/carbon, 1.3 L methanol, 475 ml ethyl acetate, hydrogen pressure control in the 0.1 - 0.2 mpa, reaction solution is 25 °C reaction 15 hours, TLC monitoring endpoint of the reaction to the reaction is complete. The fluid in a 35 °C decompression filter collects the filtrate; the filtrate is concentrated under reduced pressure to dry after adding 75 ml ethyl acetate, 70 °C stirring for 0.5 hours. After that, the mixture was to 5 °C stirring for 0.5 hours, for 5 °C standing crystallization for 2 hours, filtering, washing the filter cake with acetic acid ethyl ester, filtration cake at 50 °C decompression drying for 5 hours to afford 1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester 35 g, yield 77.8%.
1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester

1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester Preparation Products And Raw materials

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Capot Chemical Co.,Ltd.
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View Lastest Price from 1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester pictures 2019-07-06 1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester
3543-73-5
US $1.00 / kg 1kg 99% Customized Career Henan Chemical Co
5-AMINO-1-METHYL-1H-BENZIMIDAZOLE-2-BUTANOIC ACID ETHYL ESTER Ethyl-4-(5-aMino-1-Methy-1H-benzo[d] iMidazol-2-yl)butanoate 1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester 4-(5-Amino-1-methyl-1H-benzoimidazol-2-yl)-butyric acidethylester 5-amino-1-methyl-2-Benzimidazolebutyric acid ethyl ester 5-AMino-1-Methyl- 4-[5-AMino-1-MethylbenziMidazol-2-yl]butanoic acid ethyl ester 1-Methyl-5-aMino-1H-benziMidazole-2-butanoic acid ethyl este BendaMustine hydrochloride interMediate 4-(5-aMino-1-Methyl-1H-benzoiMidazol-2-yl)-butyric acid ethyl esterCAS BendaMustine Dideschloroethyl Ethyl Ester ethyl 4-(5-aMino-1-Methyl-1H-1,3-benzodiazol-2-yl)butanoate ethyl 4-(5-amino-1-methylbenzimidazol-2-yl)butanoate Bendamustine Intermediate Ethyl 4-(5-amino-1-methyl-1H-1,3-benzimidazol-2-yl)butanoate Bendamustine hydrochloride Intermediates 2 5-(5-amino-1-methyl-2-benzimidazolyl)-1-methoxy-2-pentanone 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate 1-Methyl-5-amino-1H-benzimidazole-2 endamustine Dideschloroethyl Ethyl Ester 1H-Benzimidazole-2-butanoic acid, 5-amino-1-methyl-, ethyl ester Ethyl4-(5-amino-1-methyl-1Hbenzo[d]imidazole -2-yl)butanoate ETHYL 4-(5-AMINO-1-METHYL-1HBENZIMIDAZOL-2-YL) BUTANOATE ethyl 4-(5-amino-1-methyl-1H-benzo[d]imidazol-2-yl)butanoate Bendamustine Hydrochloride Intermediate 3543-73-5 API Manufacturer Ethyl 5-amino-1-methyl-1H-benzimidazole-2-butanoate 3543-73-5 Aromatics Heterocycles Intermediates