2-Methylisoquinolin-1(2H)-one
Also known as: 1(2H)-Isoquinolinone, 2-methyl-, 2-Methyl-1(2H)-isoquinolinone, 2-Methyl-1(2H)-isoquinolone, 2-Methyl-1,2-dihydroisoquinoline-1-one, 2-methylisocarbostyril, N-Methylisocarbostyril
2-Methylisoquinolin-1(2H)-one (CAS 4594-71-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO and a molecular weight of 159.185 g/mol. Key properties include a boiling point of 307.6±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 145.2±17.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4594-71-2
- Jingsj CID
- J-998776-2
- Molecular Formula
- C10H9NO
- Molecular Weight
- 159.185 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 307.6±35.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 145.2±17.1 °C |
| Exact Mass | 159.068420 |
| PSA | 22.00000 |
| LogP | 1.55 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.593 |
Customs & Trade Information
| HS Code | 2933790090 |
|---|---|
| Summary | 2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2-Methylisoquinolin-1(2H)-one?
The CAS number of 2-Methylisoquinolin-1(2H)-one is 4594-71-2.
What are the molecular formula and molecular weight of 2-Methylisoquinolin-1(2H)-one?
2-Methylisoquinolin-1(2H)-one has molecular formula C10H9NO and molecular weight 159.185 g/mol.
What are the upstream and downstream products of 2-Methylisoquinolin-1(2H)-one?
For 2-Methylisoquinolin-1(2H)-one, Upstream Products: 2-Methyl-1,2,3,4-tetrahydroisoquinoline, Isoquinolin-1(2H)-one, iodomethane; Downstream Products: 4-Bromo-2-methylisoquinolin-1(2H)-one, 1-Chloroisoquinoline, 2-Methylisoquinoline-1,3,4-trione.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methylisoquinolin-1(2H)-one (CAS 4594-71-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-998776-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.