3-(Methylamino)tetrahydrothiophene 1,1-dioxide

3-(甲基氨基)四氢噻吩 1,1-二氧化物

Also known as: 3-Methylaminosulfolane, N-Methyl-3-sulfolanylamine, Tetrahydro-N-methylthiophen-3-amine 1,1-dioxide, (1,1-Dioxidotetrahydro-3-thienyl)methylamine, N-(1,1-Dioxidotetrahydrothien-3-yl)-N-methylamine, 3-(Methylamino)-1-thiolane-1,1-dione, 3-Methylamino-tetrahydrothiophene 1,1-dioxide, AKOS BBS-00004868, TIMTEC-BB SBB005677, N-Methyl-1,1-dioxothiolan-3-amine

3-(Methylamino)tetrahydrothiophene 1,1-dioxide (CAS 51070-55-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H11NO2S and a molecular weight of 149.21100 g/mol. It is also known as 3-Methylaminosulfolane, N-Methyl-3-sulfolanylamine and Tetrahydro-N-methylthiophen-3-amine 1,1-dioxide. Key properties include a boiling point of 325.1ºC at 760mmHg, a density of 1.23g/cm3 and a flash point of 150.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51070-55-4
Jingsj CID
J-1484322-4
Molecular Formula
C5H11NO2S
Chinese Name
3-(甲基氨基)四氢噻吩 1,1-二氧化物
Molecular Weight
149.21100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point325.1ºC at 760mmHg
Density1.23g/cm3
Flash Point150.4ºC

Frequently Asked Questions

What is the CAS number of 3-(Methylamino)tetrahydrothiophene 1,1-dioxide?

The CAS number of 3-(Methylamino)tetrahydrothiophene 1,1-dioxide is 51070-55-4.

What are the molecular formula and molecular weight of 3-(Methylamino)tetrahydrothiophene 1,1-dioxide?

3-(Methylamino)tetrahydrothiophene 1,1-dioxide has molecular formula C5H11NO2S and molecular weight 149.21100 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(Methylamino)tetrahydrothiophene 1,1-dioxide (CAS 51070-55-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1484322-4 (accessed 2026-10-24).

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