3,4-Dihydroisoquinolin-1(2H)-one
Also known as: 1(2H)-Isoquinolinone, 3,4-dihydro-, 1,2,3,4-Tetrahydroisoquinolin-1-one, 1-Oxo-1,2,3,4-tetrahydroisoquinoline, 3,4-Dihydro-1(2H)-isoquinolinone, 3,4-Dihydro-2H-isoquinolin-1-one, 3,4-Dihydro-1-isoquinolinone, 3,4-Dihydroisoquinolin-1-one, 3,4-Dihydroisocarbostyril
3,4-Dihydroisoquinolin-1(2H)-one (CAS 1196-38-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9NO and a molecular weight of 147.174 g/mol. Key properties include a melting point of 67 °C, a boiling point of 388.1±22.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 226.5±7.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1196-38-9
- Jingsj CID
- J-20166-1
- Molecular Formula
- C9H9NO
- Molecular Weight
- 147.174 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 67 °C |
|---|---|
| Boiling Point | 388.1±22.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 226.5±7.3 °C |
| Exact Mass | 147.068420 |
| PSA | 29.10000 |
| LogP | 0.79 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.564 |
Frequently Asked Questions
What is the CAS number of 3,4-Dihydroisoquinolin-1(2H)-one?
The CAS number of 3,4-Dihydroisoquinolin-1(2H)-one is 1196-38-9.
What are the molecular formula and molecular weight of 3,4-Dihydroisoquinolin-1(2H)-one?
3,4-Dihydroisoquinolin-1(2H)-one has molecular formula C9H9NO and molecular weight 147.174 g/mol.
What are the upstream and downstream products of 3,4-Dihydroisoquinolin-1(2H)-one?
For 3,4-Dihydroisoquinolin-1(2H)-one, Upstream Products: Ethyl phenethylcarbamate, 2-Bromophenethylamine, 1,2,3,4-Tetrahydroisoquinoline; Downstream Products: 1,2,3,4-Tetrahydroisoquinoline, Benzopinacole, 7-Amino-3,4-dihydroisoquinolin-1(2H)-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. "3,4-Dihydroisoquinolin-1(2H)-one (CAS 1196-38-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20166-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.