6,7-Dimethoxy-3,4-dihydroisoquinoline

Also known as: Dehydroheliamine, 3,4-dihydro-6,7-dimethoxyisoquinoline, 6,7-Dimethoxy-3,4-dihydroisoquinoline, Isoquinoline, 3,4-dihydro-6,7-dimethoxy-, 3,4-dihydrobackebergine

6,7-Dimethoxy-3,4-dihydroisoquinoline (CAS 3382-18-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H13NO2 and a molecular weight of 191.226 g/mol. Key properties include a melting point of 39-40℃, a boiling point of 322.9±42.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 122.0±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3382-18-1
Jingsj CID: J-1512313-4
Molecular Formula: C₁₁H₁₃NO₂
Molecular Weight: 191.226 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	39-40℃
Boiling Point	322.9±42.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	122.0±20.4 °C
Exact Mass	191.094635
PSA	30.82000
LogP	1.63
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.549
Storage Conditions	2-8°C

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 6,7-Dimethoxy-3,4-dihydroisoquinoline?

The CAS number of 6,7-Dimethoxy-3,4-dihydroisoquinoline is 3382-18-1.

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

6,7-Dimethoxy-3,4-dihydroisoquinoline has molecular formula C11H13NO2 and molecular weight 191.226 g/mol.

What are the upstream and downstream products of 6,7-Dimethoxy-3,4-dihydroisoquinoline?

For 6,7-Dimethoxy-3,4-dihydroisoquinoline, Upstream Products: 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline, N-(3,4-Dimethoxyphenethyl)formamide, 3,4-Dimethoxyphenethylamine; Downstream Products: 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, (R)-(+)-Tetrahydropapaverine, 7-Hydroxy-6-methoxy-3,4-dihydroisoquinoline.

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. "6,7-Dimethoxy-3,4-dihydroisoquinoline (CAS 3382-18-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1512313-4 (accessed 2026-11-09).

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