1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde

Also known as: 1-hydroxyisoquinoline-4-carbaldehyde, 4-Isoquinolinecarboxaldehyde, 1,2-dihydro-1-oxo-, 1,2-dihydro-1-oxo-4-isoquinolinecarboxaldehyde, 1-oxo-2H-isoquinoline-4-carbaldehyde, 4-Formylisocarbostyril

1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde (CAS 63125-40-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H7NO2 and a molecular weight of 173.16800 g/mol. Key properties include a melting point of 235-238ºC, a boiling point of 453.66ºC at 760 mmHg and a density of 1.367. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 63125-40-6
Jingsj CID: J-1471963-2
Molecular Formula: C₁₀H₇NO₂
Molecular Weight: 173.16800 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	235-238ºC
Boiling Point	453.66ºC at 760 mmHg
Density	1.367
Exact Mass	173.04800
PSA	49.93000
LogP	1.34060
Refractive Index	1.685

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 1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde?

The CAS number of 1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde is 63125-40-6.

What are the molecular formula and molecular weight of 1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde?

1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde has molecular formula C10H7NO2 and molecular weight 173.16800 g/mol.

What are the upstream and downstream products of 1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde?

For 1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde, Upstream Products: 4-Bromoisoquinolin-1(2H)-one, N,N-Dimethylformamide.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde (CAS 63125-40-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1471963-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.