7,8-Dihydro-6H-isoquinolin-5-one
Also known as: 7,8-Dihydroisoquinolin-5(6H)-one, 5,6,7,8-Tetrahydroisoquinolin-5-one, 5-Oxo-5,6,7,8-tetrahydroisoquinoline, 7,8-Dihydro-5(6H)-isoquinolinone, 6,7-Dihydroisoquinolin-5(8H)-one
7,8-Dihydro-6H-isoquinolin-5-one (CAS 21917-86-2) 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 287.4±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 135.2±26.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21917-86-2
- Jingsj CID
- J-1524490-3
- 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 | 287.4±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 135.2±26.1 °C |
| Exact Mass | 147.068420 |
| PSA | 29.96000 |
| LogP | 1.19 |
| Vapor Pressure | 0.0±0.6 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 7,8-Dihydro-6H-isoquinolin-5-one?
The CAS number of 7,8-Dihydro-6H-isoquinolin-5-one is 21917-86-2.
What are the molecular formula and molecular weight of 7,8-Dihydro-6H-isoquinolin-5-one?
7,8-Dihydro-6H-isoquinolin-5-one has molecular formula C9H9NO and molecular weight 147.174 g/mol.
What are the upstream and downstream products of 7,8-Dihydro-6H-isoquinolin-5-one?
For 7,8-Dihydro-6H-isoquinolin-5-one, Upstream Products: 5,6,7,8-Tetrahydroisoquinoline, 5,6,7,8-Tetrahydroisoquinolin-5-one hydrochloride, 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. "7,8-Dihydro-6H-isoquinolin-5-one (CAS 21917-86-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524490-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.