6,7-Dihydro-5H-isoquinolin-8-one
Also known as: 6,7-Dihydroisoquinolin-8(5H)-one, 6,7-dihydro-8(5H)-isoquinolinone, 8(5H)-Isoquinolinone, 6,7-dihydro-, 5,6,7,8-tetrahydro-8-oxo-isoquinoline, 6,7-dihydro-5H-isochinolin-8-on
6,7-Dihydro-5H-isoquinolin-8-one (CAS 21917-88-4) 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 boiling point of 266.2±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 121.8±26.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21917-88-4
- Jingsj CID
- J-1339723-4
- 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
| Boiling Point | 266.2±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 121.8±26.1 °C |
| Exact Mass | 147.068420 |
| PSA | 29.96000 |
| LogP | 1.42 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.569 |
Customs & Trade Information
| HS Code | 2933499090 |
|---|---|
| Summary | 2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. 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 6,7-Dihydro-5H-isoquinolin-8-one?
The CAS number of 6,7-Dihydro-5H-isoquinolin-8-one is 21917-88-4.
What are the molecular formula and molecular weight of 6,7-Dihydro-5H-isoquinolin-8-one?
6,7-Dihydro-5H-isoquinolin-8-one has molecular formula C9H9NO and molecular weight 147.174 g/mol.
What are the upstream and downstream products of 6,7-Dihydro-5H-isoquinolin-8-one?
For 6,7-Dihydro-5H-isoquinolin-8-one, Upstream Products: 5,6,7,8-Tetrahydroisoquinoline, acetic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "6,7-Dihydro-5H-isoquinolin-8-one (CAS 21917-88-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1339723-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.