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3,4-Diphenylisoquinoline

Also known as: 3,4-Diphenylisochinolin, 3,4-diphenylisoquinoline, Isoquinoline, 3,4-diphenyl-

3,4-Diphenylisoquinoline (CAS 52839-45-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C21H15N and a molecular weight of 281.35100 g/mol. Key properties include a boiling point of 402.07ºC at 760 mmHg, a density of 1.137g/cm3 and a flash point of 173.804ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
52839-45-9
Jingsj CID
J-990686-9
Molecular Formula
C21H15N
Molecular Weight
281.35100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point402.07ºC at 760 mmHg
Density1.137g/cm3
Flash Point173.804ºC
Exact Mass281.12000
PSA12.89000
LogP5.56880
Refractive Index1.661

Customs & Trade Information

HS Code2933499090
Summary2933499090. 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 3,4-Diphenylisoquinoline?

The CAS number of 3,4-Diphenylisoquinoline is 52839-45-9.

What are the molecular formula and molecular weight of 3,4-Diphenylisoquinoline?

3,4-Diphenylisoquinoline has molecular formula C21H15N and molecular weight 281.35100 g/mol.

What are the upstream and downstream products of 3,4-Diphenylisoquinoline?

For 3,4-Diphenylisoquinoline, Upstream Products: 2-Iodobenzaldehyde, Diphenylacetylene, 2-Bromobenzaldehyde.

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-Diphenylisoquinoline (CAS 52839-45-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-990686-9 (accessed 2026-11-09).

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