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Dimethyl 3,3'-thiodipropionate

Also known as: Dimethyl 3,3'-sulfanediyldipropanoate, Bis(2-methoxycarbonylethyl)sulfide, Dimethyl 3,3'-thiodipropanoate, 3,3'-Thiodipropionic Acid Dimethyl Ester, EINECS 223-948-9, MFCD00008465, Propanoic acid, 3,3'-thiobis-, dimethyl ester, methyl 3-(3-methoxy-3-oxopropyl)sulfanylpropanoate

Dimethyl 3,3'-thiodipropionate (CAS 4131-74-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H14O4S and a molecular weight of 206.259 g/mol. Key properties include a boiling point of 269.4±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 127.2±11.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4131-74-2
Jingsj CID
J-4674-2
Molecular Formula
C8H14O4S
Molecular Weight
206.259 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point269.4±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point127.2±11.2 °C
Exact Mass206.061279
PSA77.90000
LogP1.19
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.470

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Dimethyl 3,3'-thiodipropionate?

The CAS number of Dimethyl 3,3'-thiodipropionate is 4131-74-2.

What are the molecular formula and molecular weight of Dimethyl 3,3'-thiodipropionate?

Dimethyl 3,3'-thiodipropionate has molecular formula C8H14O4S and molecular weight 206.259 g/mol.

What are the upstream and downstream products of Dimethyl 3,3'-thiodipropionate?

For Dimethyl 3,3'-thiodipropionate, Upstream Products: acrylic acid methyl ester, Methyl 3-mercaptopropionate, Ethyl 2-bromopropionate; Downstream Products: Methyl 4-oxotetrahydro-2H-thiopyran-3-carboxylate, 2,4-dichloro-7,8-dihydro-5H-thiopyrano[4,3-d]pyrimidine, Tetrahydrothiopyran-4-one.

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 3,3'-thiodipropionate (CAS 4131-74-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4674-2 (accessed 2026-11-09).

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