Ethyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate
Also known as: 1-Methyl-5-amino-1H-benzimidazole-2-butanoic acid ethyl ester, 4-(5-Amino-1-methyl-1H-benzimidazol-2-yl)butanoic acid ethyl ester, 5-Amino-1-methyl-2-benzimidazolebutyric acid ethyl ester, Ethyl 4-(5-amino-1-methyl-1H-benzo[d]imidazol-2-yl)butanoate, Bendamustine intermediate
Ethyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate (CAS 3543-73-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H19N3O2 and a molecular weight of 261.320 g/mol. Key properties include a melting point of 130-135ºC, a boiling point of 471.6±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 239.0±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3543-73-5
- Jingsj CID
- J-1063331-5
- Molecular Formula
- C14H19N3O2
- Molecular Weight
- 261.320 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 130-135ºC |
|---|---|
| Boiling Point | 471.6±25.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 239.0±23.2 °C |
| Exact Mass | 261.147736 |
| PSA | 70.14000 |
| LogP | 1.72 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.591 |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Ethyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate?
The CAS number of Ethyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate is 3543-73-5.
What are the molecular formula and molecular weight of Ethyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate?
Ethyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate has molecular formula C14H19N3O2 and molecular weight 261.320 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyl 4-(5-amino-1-methyl-1H-benzimidazol-2-yl)butanoate (CAS 3543-73-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1063331-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.