1-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline

Also known as: 6,7-Diethoxy-1-methyl-3,4-dihydroisoquinoline, 6,7-Diaethoxy-1-methyl-3,4-dihydro-isochinolin, 6,7-diethoxy-1-methyl-3,4-dihydro-isoquinoline, Isoquinoline, 6,7-diethoxy-3,4-dihydro-1-methyl-, MFCD00142666

1-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline (CAS 99155-80-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H19NO2 and a molecular weight of 233.30600 g/mol. Key properties include a melting point of 68-71ºC, a boiling point of 342.3ºC at 760 mmHg, a density of 1.07g/cm3 and a flash point of 131.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 99155-80-3
Jingsj CID: J-1102893-6
Molecular Formula: C₁₄H₁₉NO₂
Molecular Weight: 233.30600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	68-71ºC
Boiling Point	342.3ºC at 760 mmHg
Density	1.07g/cm3
Flash Point	131.1ºC
Exact Mass	233.14200
PSA	30.82000
LogP	2.28470
Refractive Index	1.534

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 1-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline?

The CAS number of 1-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline is 99155-80-3.

What are the molecular formula and molecular weight of 1-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline?

1-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline has molecular formula C14H19NO2 and molecular weight 233.30600 g/mol.

What are the upstream and downstream products of 1-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline?

For 1-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline, Upstream Products: 3,4-Diethoxyphenethylamine.

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-Methyl-6,7-diethoxy-3,4-dihydroisoquinoline (CAS 99155-80-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1102893-6 (accessed 2026-11-09).

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