Benzenesulfonothioic acid, 4-methyl-, S1,S1'-1,3-propanediyl ester

s,s'-三甲烯(p-甲苯硫代磺酸盐)

Also known as: Trimethylene di(thiotosylate), 1,3-Di(p-tosylthio)propane, 1,3-Propanediyl Di(thiotosylate), 1-methyl-4-[3-(4-methylphenyl)sulfonylsulfanylpropylsulfanylsulfonyl]benzene, MFCD00014918, Trimethylene Bis(p-toluenethiosulfonate)

Benzenesulfonothioic acid, 4-methyl-, S1,S1'-1,3-propanediyl ester (CAS 3866-79-3) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C17H20O4S4 and a molecular weight of 416.59800 g/mol. It is also known as Trimethylene di(thiotosylate), 1,3-Di(p-tosylthio)propane and 1,3-Propanediyl Di(thiotosylate). Key properties include a melting point of 64-67ºC, a boiling point of 592.3ºC at 760mmHg, a density of 1.34g/cm3 and a flash point of 312ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3866-79-3
Jingsj CID
J-15885-7
Molecular Formula
C17H20O4S4
Chinese Name
s,s'-三甲烯(p-甲苯硫代磺酸盐)
Molecular Weight
416.59800 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point64-67ºC
Boiling Point592.3ºC at 760mmHg
Density1.34g/cm3
Flash Point312ºC

Frequently Asked Questions

What is the CAS number of Benzenesulfonothioic acid, 4-methyl-, S1,S1'-1,3-propanediyl ester?

The CAS number of Benzenesulfonothioic acid, 4-methyl-, S1,S1'-1,3-propanediyl ester is 3866-79-3.

What are the molecular formula and molecular weight of Benzenesulfonothioic acid, 4-methyl-, S1,S1'-1,3-propanediyl ester?

Benzenesulfonothioic acid, 4-methyl-, S1,S1'-1,3-propanediyl ester has molecular formula C17H20O4S4 and molecular weight 416.59800 g/mol.

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

Last updated:

How to cite: Jingsj. "Benzenesulfonothioic acid, 4-methyl-, S1,S1'-1,3-propanediyl ester (CAS 3866-79-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15885-7 (accessed 2026-10-24).

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