3,4-Dimethoxyphenyl isothiocyanate

3,4-二甲氧基苯基异硫氰酸酯

Also known as: 4-Isothiocyanato-1,2-dimethoxybenzene, Isothiocyanic acid 3,4-dimethoxyphenyl ester, Benzene, 4-isothiocyanato-1,2-dimethoxy-, 4-Isothiocyanatoveratrol

3,4-Dimethoxyphenyl isothiocyanate (CAS 33904-04-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H9NO2S and a molecular weight of 195.23800 g/mol. It is also known as 4-Isothiocyanato-1,2-dimethoxybenzene, Isothiocyanic acid 3,4-dimethoxyphenyl ester and Benzene, 4-isothiocyanato-1,2-dimethoxy-. Key properties include a melting point of 47 °C, a boiling point of 171 °C, a density of 1.12g/cm3 and a flash point of 171-172°C/7mm. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33904-04-0
Jingsj CID
J-49418-6
Molecular Formula
C9H9NO2S
Chinese Name
3,4-二甲氧基苯基异硫氰酸酯
Molecular Weight
195.23800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point47 °C
Boiling Point171 °C
Density1.12g/cm3
Flash Point171-172°C/7mm

Frequently Asked Questions

What is the CAS number of 3,4-Dimethoxyphenyl isothiocyanate?

The CAS number of 3,4-Dimethoxyphenyl isothiocyanate is 33904-04-0.

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

3,4-Dimethoxyphenyl isothiocyanate has molecular formula C9H9NO2S and molecular weight 195.23800 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-Dimethoxyphenyl isothiocyanate (CAS 33904-04-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49418-6 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.