1H-Benzimidazole-2-sulfonic acid
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. 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-1990784-7
- Molecular Formula
- C7H6N2O3S
- 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 |
| Exact Mass | 198.01000 |
| PSA | 91.43000 |
| LogP | 1.89040 |
| Refractive Index | 1.716 |
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 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 such as PubChem 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-1990784-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.