5-Methoxy-2-mercaptobenzimidazole
Also known as: 2-Mercapto-5-methoxybenzimidazole, 2-Mercapto-5-methoxy-1H-benzimidazole, 5-Methoxy-2-benzimidazolethiol, 5-Methoxy-1H-benzo[d]imidazole-2-thiol, 5-Methoxy-2-thiobenzimidazole, 5-Methoxybenzimidazole-2-thiol, 2H-Benzimidazole-2-thione, 1,3-dihydro-5-methoxy-, Esomeprazole Impurity 1, H 118/87, MFCD00134581, EINECS 253-326-2
5-Methoxy-2-mercaptobenzimidazole (CAS 37052-78-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8N2OS and a molecular weight of 180.227 g/mol. Key properties include a melting point of 261-263 °C(lit.), a boiling point of 309.4±44.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 140.9±28.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 37052-78-1
- Jingsj CID
- J-1990713-2
- Molecular Formula
- C8H8N2OS
- Molecular Weight
- 180.227 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 261-263 °C(lit.) |
|---|---|
| Boiling Point | 309.4±44.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 140.9±28.4 °C |
| Exact Mass | 180.035736 |
| PSA | 72.90000 |
| LogP | 1.92 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.695 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Witold Ciesielski, et al. Iodimetric Determination of 2-Benzimidazolethiols and 2-Benzothiazolethiols. Chem. Anal. (Warsaw), 49, 577 (2004). |
|---|
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 5-Methoxy-2-mercaptobenzimidazole?
The CAS number of 5-Methoxy-2-mercaptobenzimidazole is 37052-78-1.
What are the molecular formula and molecular weight of 5-Methoxy-2-mercaptobenzimidazole?
5-Methoxy-2-mercaptobenzimidazole has molecular formula C8H8N2OS and molecular weight 180.227 g/mol.
Is 5-Methoxy-2-mercaptobenzimidazole hazardous?
5-Methoxy-2-mercaptobenzimidazole has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 5-Methoxy-2-mercaptobenzimidazole?
For 5-Methoxy-2-mercaptobenzimidazole, Upstream Products: Carbon disulphide, N-(2-Amino-4-methoxyphenyl)acetamide, 4-Methoxy-o-phenylenediamine; Downstream Products: Ufiprazole, 5-Methoxy-2-[[(3,5-dimethyl-4-nitro-2-pyridinyl)methyl]thio]-1H-benzimidazole, 5-Methoxy-2-(methylthio)benzimidazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Methoxy-2-mercaptobenzimidazole (CAS 37052-78-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990713-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.