3,4-dihydroisoquinoline-6,7-diol

6,7-二羟基-3,4-二氢异喹啉

Also known as: 6,7-Dihydroxy-3,4-dihydroisoquinoline, 3,4-Dihydro-6,7-isoquinolinediol, 3,4-DIHYDRO-6,7-DIHYDROXYISOQUINOLINE, 3,4-DIHYDROISOQUINOLINE-6,7-DIOL, 6,7-Isoquinolinediol, 3,4-dihydro-, H64721, MFCD00143490

3,4-dihydroisoquinoline-6,7-diol (CAS 4602-83-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9NO2 and a molecular weight of 163.173 g/mol. It is also known as 6,7-Dihydroxy-3,4-dihydroisoquinoline, 3,4-Dihydro-6,7-isoquinolinediol and 3,4-DIHYDRO-6,7-DIHYDROXYISOQUINOLINE. Key properties include a melting point of 244-248ºC, a boiling point of 396.4±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 254.0±17.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4602-83-9
Jingsj CID: J-22629-1
Molecular Formula: C₉H₉NO₂
Chinese Name: 6,7-二羟基-3,4-二氢异喹啉
Molecular Weight: 163.173 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	244-248ºC
Boiling Point	396.4±42.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	254.0±17.1 °C

Frequently Asked Questions

What is the CAS number of 3,4-dihydroisoquinoline-6,7-diol?

The CAS number of 3,4-dihydroisoquinoline-6,7-diol is 4602-83-9.

What are the molecular formula and molecular weight of 3,4-dihydroisoquinoline-6,7-diol?

3,4-dihydroisoquinoline-6,7-diol has molecular formula C9H9NO2 and molecular weight 163.173 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "3,4-dihydroisoquinoline-6,7-diol (CAS 4602-83-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22629-1 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.