Trimethylsulfonium methyl sulfate
Also known as: Trimethylsulfonium methosulfate, Trimethylsulfonium methylsulfate, Trimethylsulfoxonium methyl chloride, Trimethylsulphonium Methylsulphate, methyl trimethylsulfonium sulfate, MFCD00012205
Trimethylsulfonium methyl sulfate (CAS 2181-44-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H12O4S2 and a molecular weight of 188.26600 g/mol. Key property: a melting point of 92-94ºC(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2181-44-4
- Jingsj CID
- J-1361779-3
- Molecular Formula
- C4H12O4S2
- Molecular Weight
- 188.26600 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 92-94ºC(lit.) |
|---|---|
| Exact Mass | 188.01800 |
| PSA | 100.11000 |
| LogP | 0.66790 |
| Appearance | Crystalline Powder | White |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. 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 Trimethylsulfonium methyl sulfate?
The CAS number of Trimethylsulfonium methyl sulfate is 2181-44-4.
What are the molecular formula and molecular weight of Trimethylsulfonium methyl sulfate?
Trimethylsulfonium methyl sulfate has molecular formula C4H12O4S2 and molecular weight 188.26600 g/mol.
Is Trimethylsulfonium methyl sulfate hazardous?
Trimethylsulfonium methyl sulfate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Trimethylsulfonium methyl sulfate?
For Trimethylsulfonium methyl sulfate, Upstream Products: Dimethyl sulfide, Dimethyl sulfate; Downstream Products: N,1-diphenylethanimine, 2-Methyl-2-phenyloxirane, 2,2-Diphenyloxirane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethylsulfonium methyl sulfate (CAS 2181-44-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361779-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.