Methyl 2-cyano-2-(3-tetrahydrothienylidene)acetate

2-氰基-2-(3-四氢噻吩甲叉)乙酸甲酯

Also known as: Methyl 2-cyano-2-tetrahydrothiophen-3-ylidenacetate, cyano-dihydrothiophen-3-ylidene-acetic acid methyl ester, Acetic acid, 2-cyano-2-(dihydro-3(2H)-thienylidene)-, methyl ester, Methyl 2-cyano-2-[(3E)-thiolan-3-ylidene]acetate, Methyl (2E)-cyano(dihydro-3(2H)-thiophenylidene)acetate, METHYL 2-CYANO-2-(3-TETRAHYDRO THIENYLIDENE)ACETATE

Methyl 2-cyano-2-(3-tetrahydrothienylidene)acetate (CAS 40548-04-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H9NO2S and a molecular weight of 183.22800 g/mol. It is also known as Methyl 2-cyano-2-tetrahydrothiophen-3-ylidenacetate, cyano-dihydrothiophen-3-ylidene-acetic acid methyl ester and Acetic acid, 2-cyano-2-(dihydro-3(2H)-thienylidene)-, methyl ester. Key properties include a boiling point of 332.8ºC at 760 mmHg and a density of 1.277g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40548-04-7
Jingsj CID
J-1481546-9
Molecular Formula
C8H9NO2S
Chinese Name
2-氰基-2-(3-四氢噻吩甲叉)乙酸甲酯
Molecular Weight
183.22800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point332.8ºC at 760 mmHg
Density1.277g/cm3

Frequently Asked Questions

What is the CAS number of Methyl 2-cyano-2-(3-tetrahydrothienylidene)acetate?

The CAS number of Methyl 2-cyano-2-(3-tetrahydrothienylidene)acetate is 40548-04-7.

What are the molecular formula and molecular weight of Methyl 2-cyano-2-(3-tetrahydrothienylidene)acetate?

Methyl 2-cyano-2-(3-tetrahydrothienylidene)acetate has molecular formula C8H9NO2S and molecular weight 183.22800 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl 2-cyano-2-(3-tetrahydrothienylidene)acetate (CAS 40548-04-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1481546-9 (accessed 2026-10-24).

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