Skip to main content
Jingsj
.mol.sdf

methylenebis(3-mercaptopropionic acid)

Also known as: 3,3'-(Methylenedithio)dipropionic acid, 3,3'-Methylenebisthiobispropanoic acid, 3,3'-[methylenebis(thio)]bispropionic acid, 3-([[(2-Carboxyethyl)thio]methyl]thio)propanoic acid, Methylenebis(3-thiopropionic acid)

methylenebis(3-mercaptopropionic acid) (CAS 4265-57-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H12O4S2 and a molecular weight of 224.29800 g/mol. Key properties include a melting point of 138ºC, a boiling point of 466.5ºC at 760mmHg, a density of 1.39g/cm3 and a flash point of 235.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4265-57-0
Jingsj CID
J-1359876-0
Molecular Formula
C7H12O4S2
Molecular Weight
224.29800 g/mol
Category
Organic Acids
Last updated
8/21/2026
Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point138ºC
Boiling Point466.5ºC at 760mmHg
Density1.39g/cm3
Flash Point235.9ºC
Exact Mass224.01800
PSA125.20000
LogP1.35970
Refractive Index1.571

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 methylenebis(3-mercaptopropionic acid)?

The CAS number of methylenebis(3-mercaptopropionic acid) is 4265-57-0.

What are the molecular formula and molecular weight of methylenebis(3-mercaptopropionic acid)?

methylenebis(3-mercaptopropionic acid) has molecular formula C7H12O4S2 and molecular weight 224.29800 g/mol.

What are the upstream and downstream products of methylenebis(3-mercaptopropionic acid)?

For methylenebis(3-mercaptopropionic acid), Upstream Products: Formaldehyde, 3-Mercaptopropionic acid, Methyl 3-mercaptopropionate.

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

Last updated:

How to cite: Jingsj. "methylenebis(3-mercaptopropionic acid) (CAS 4265-57-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359876-0 (accessed 2026-11-09).

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