1H-Benzimidazole-2-sulfonic acid
1H-苯并咪唑-2-磺酸
Also known as: 1H-Benzimidazole-2-sulfonic acid, 1H-benzoimidazole-2-sulfonic acid, benzimidazole-2-sulfonic acid, Rabeprazole Impurity 20, MFCD00100972, 2-Benzimidazolesulfonic acid
1H-Benzimidazole-2-sulfonic acid (CAS 40828-54-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6N2O3S and a molecular weight of 198.19900 g/mol. It is also known as 1H-benzoimidazole-2-sulfonic acid, benzimidazole-2-sulfonic acid and Rabeprazole Impurity 20. Key properties include a melting point of 116-119 °C(lit.) and a density of 1.681g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40828-54-4
- Jingsj CID
- J-1990784-8
- Molecular Formula
- C7H6N2O3S
- Chinese Name
- 1H-苯并咪唑-2-磺酸
- Molecular Weight
- 198.19900 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 116-119 °C(lit.) |
|---|---|
| Density | 1.681g/cm3 |
Frequently Asked Questions
What is the CAS number of 1H-Benzimidazole-2-sulfonic acid?
The CAS number of 1H-Benzimidazole-2-sulfonic acid is 40828-54-4.
What are the molecular formula and molecular weight of 1H-Benzimidazole-2-sulfonic acid?
1H-Benzimidazole-2-sulfonic acid has molecular formula C7H6N2O3S and molecular weight 198.19900 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1H-Benzimidazole-2-sulfonic acid (CAS 40828-54-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990784-8 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.