5-Bromo-1-methyl-2(1H)-pyridinone
Also known as: 5-Bromo-1-methylpyridin-2(1H)-one, 5-Bromo-1-methyl-2(1H)-pyridone, 5-bromo-1-methyl-1,2-dihydropyridin-2-one, 5-Bromo-1-methyl-1H-pyridin-2-one, 2(1H)-Pyridinone, 5-bromo-1-methyl-
5-Bromo-1-methyl-2(1H)-pyridinone (CAS 81971-39-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6BrNO and a molecular weight of 188.022 g/mol. Key properties include a melting point of 62-63℃, a boiling point of 258.1±33.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 109.9±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 81971-39-3
- Jingsj CID
- J-1000006-3
- Molecular Formula
- C6H6BrNO
- Molecular Weight
- 188.022 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 62-63℃ |
|---|---|
| Boiling Point | 258.1±33.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 109.9±25.4 °C |
| Exact Mass | 186.963272 |
| PSA | 22.00000 |
| LogP | 0.13 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.596 |
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. 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-Bromo-1-methyl-2(1H)-pyridinone?
The CAS number of 5-Bromo-1-methyl-2(1H)-pyridinone is 81971-39-3.
What are the molecular formula and molecular weight of 5-Bromo-1-methyl-2(1H)-pyridinone?
5-Bromo-1-methyl-2(1H)-pyridinone has molecular formula C6H6BrNO and molecular weight 188.022 g/mol.
What are the upstream and downstream products of 5-Bromo-1-methyl-2(1H)-pyridinone?
For 5-Bromo-1-methyl-2(1H)-pyridinone, Upstream Products: 2-Hydroxy-5-bromopyridine, iodomethane, 1-Methyl-2-pyridone; Downstream Products: 5-Bromo-2-chloropyridine, 1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one, 3,5-Dibromo-1-methylpyridin-2(1H)-one.
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-Bromo-1-methyl-2(1H)-pyridinone (CAS 81971-39-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1000006-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.