![Molecular structure of 5-Methyl-1H-benzo[d]imidazol-2(3H)-one (CAS 5400-75-9)](/images/chem_structures_svg/488/5400-75-9.svg)
5-Methyl-1H-benzo[d]imidazol-2(3H)-one
Also known as: 5-Methylbenzimidazolone, 5-Methyl-2-benzimidazolinone, 5-Methyl-2(3H)-benzimidazolone, 5-Methylbenzoimidazol-2(3H)-one, 5-Methyl-1,3-dihydro-2H-benzimidazol-2-one, 1,3-Dihydro-5-methyl-2H-benzimidazol-2-one, 5-Methyl-1,3-dihydrobenzimidazol-2-one
5-Methyl-1H-benzo[d]imidazol-2(3H)-one (CAS 5400-75-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8N2O and a molecular weight of 148.16200 g/mol. Key properties include a boiling point of 147.7ºC at 760 mmHg, a density of 1.201g/cm3 and a flash point of 51.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5400-75-9
- Jingsj CID
- J-1515226-8
- Molecular Formula
- C8H8N2O
- Molecular Weight
- 148.16200 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 147.7ºC at 760 mmHg |
|---|---|
| Density | 1.201g/cm3 |
| Flash Point | 51.2ºC |
| Exact Mass | 148.06400 |
| PSA | 48.65000 |
| LogP | 1.16460 |
| Refractive Index | 1.576 |
| Storage Conditions | 2-8°C |
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-Methyl-1H-benzo[d]imidazol-2(3H)-one?
The CAS number of 5-Methyl-1H-benzo[d]imidazol-2(3H)-one is 5400-75-9.
What are the molecular formula and molecular weight of 5-Methyl-1H-benzo[d]imidazol-2(3H)-one?
5-Methyl-1H-benzo[d]imidazol-2(3H)-one has molecular formula C8H8N2O and molecular weight 148.16200 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. "5-Methyl-1H-benzo[d]imidazol-2(3H)-one (CAS 5400-75-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515226-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.