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Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate

Also known as: 2,3-Dimethoxycarbonyl-4-oxotetrahydrothiophen, 2,3-bismethoxycarbonyl-4-oxotetrahydrothiophene, 2,3-bismethoxycarbonyltetrahydrothiophen-4-one, 2,3-diMethyl 4-oxothiolane-2,3-dicarboxylate, 3-Oxo-4,5-bismethoxycarbonyltetrahydrothiophene, 4,5-Dicarbomethoxy-3-thiophanone, 4-Oxotetrahydrothiophene-2,3-dicarboxylic acid dimethyl ester, 4-oxothiolane-2,3-dicarboxylic acid dimethyl ester, Dimethyl tetrahydro-4-oxothiophene-2,3-dicarboxylate

Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate (CAS 38293-63-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H10O5S and a molecular weight of 218.22700 g/mol. Key properties include a boiling point of 130ºC 1mm, a density of 1.364g/cm3 and a flash point of 163.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
38293-63-9
Jingsj CID
J-1503015-6
Molecular Formula
C8H10O5S
Molecular Weight
218.22700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point130ºC 1mm
Density1.364g/cm3
Flash Point163.2ºC
Exact Mass218.02500
PSA94.97000
Refractive Index1.52

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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 Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate?

The CAS number of Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate is 38293-63-9.

What are the molecular formula and molecular weight of Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate?

Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate has molecular formula C8H10O5S and molecular weight 218.22700 g/mol.

What are the upstream and downstream products of Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate?

For Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate, Upstream Products: Methyl thioglycolate, Dimethyl fumarate, Sodium methoxide; Downstream Products: Dimethyl 4-aminothiophene-2,3-dicarboxylate.

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

Last updated:

How to cite: Jingsj. "Dimethyl 4-oxotetrahydrothiophene-2,3-dicarboxylate (CAS 38293-63-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503015-6 (accessed 2026-11-09).

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