3,4-Dihydropapaverine

Also known as: 1-[(3,4-Dimethoxyphenyl)methyl]-3,4-dihydro-6,7-dimethoxyisoquinoline, 1-(3,4-Dimethoxybenzyl)-6,7-dimethoxy-3,4-dihydroisoquinoline, 1-(3,4-Dimethoxybenzyl)-3,4-dihydro-6,7-dimethoxyisoquinoline, 3,4-Dihydro-6,7-dimethoxy-1-(3,4-dimethoxybenzyl)isoquinoline, Dihydropapaverine, 6,7-dimethoxy-1-(3,4-dimethoxybenzyl)-3,4-dihydroisoquinoline, 1-(3',4'-dimethoxybenzyl)-6,7-dimethoxy-3,4-dihydroisoquinoline

3,4-Dihydropapaverine (CAS 6957-27-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C20H23NO4 and a molecular weight of 341.40100 g/mol. Key properties include a boiling point of 482.6ºC at 760 mmHg, a density of 1.15 g/cm3 and a flash point of 196.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6957-27-3
Jingsj CID: J-1391948-7
Molecular Formula: C₂₀H₂₃NO₄
Molecular Weight: 341.40100 g/mol
Category: Organic Bases
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	482.6ºC at 760 mmHg
Density	1.15 g/cm3
Flash Point	196.9ºC
Exact Mass	341.16300
PSA	49.28000
LogP	2.74450

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 3,4-Dihydropapaverine?

The CAS number of 3,4-Dihydropapaverine is 6957-27-3.

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

3,4-Dihydropapaverine has molecular formula C20H23NO4 and molecular weight 341.40100 g/mol.

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. "3,4-Dihydropapaverine (CAS 6957-27-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1391948-7 (accessed 2026-11-09).

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