1,1'-Sulfonylbis(3,4-dimethylbenzene)

Also known as: 4,4'-Sulfonylbis(1,2-dimethylbenzene), Bis(3,4-dimethylphenyl) sulfone, Di-3,4-xylyl sulfone, Di-3,4-xylyl sulphone, 3,3',4,4'-Tetramethyldiphenylsulfone, 3,4-Xylyl sulfone, Benzene,1,1'-sulfonylbis[3,4-dimethyl-, 1,1'-sulfonylbis[3,4-dimethyl-Benzene, 1,1'-sulfonylbis[3,4-dimethyl-benzen

1,1'-Sulfonylbis(3,4-dimethylbenzene) (CAS 28361-43-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C16H18O2S and a molecular weight of 274.37800 g/mol. Key properties include a boiling point of 444.9ºC at 760mmHg, a density of 1.129g/cm3 and a flash point of 267.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 28361-43-5
Jingsj CID: J-1525885-2
Molecular Formula: C₁₆H₁₈O₂S
Molecular Weight: 274.37800 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	444.9ºC at 760mmHg
Density	1.129g/cm3
Flash Point	267.8ºC
Exact Mass	274.10300
PSA	42.52000
LogP	4.83380
Vapor Pressure	1.08E-07mmHg at 25°C
Refractive Index	1.562

Customs & Trade Information

HS Code	2904100000
Summary	2904100000 derivatives containing only sulpho groups, their salts and ethyl esters。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,1'-Sulfonylbis(3,4-dimethylbenzene)?

The CAS number of 1,1'-Sulfonylbis(3,4-dimethylbenzene) is 28361-43-5.

What are the molecular formula and molecular weight of 1,1'-Sulfonylbis(3,4-dimethylbenzene)?

1,1'-Sulfonylbis(3,4-dimethylbenzene) has molecular formula C16H18O2S and molecular weight 274.37800 g/mol.

What are the upstream and downstream products of 1,1'-Sulfonylbis(3,4-dimethylbenzene)?

For 1,1'-Sulfonylbis(3,4-dimethylbenzene), Upstream Products: o-xylene, 3,4-dimethylbenzenesulfonyl chloride, Methyl p-toluenesulfonate.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,1'-Sulfonylbis(3,4-dimethylbenzene) (CAS 28361-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525885-2 (accessed 2026-11-09).

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