Methyl 2-(methylthio)acetate
Also known as: Methyl (methylthio)acetate, Methyl (methylmercapto)acetate, Methyl (methylsulfanyl)acetate, methyl 2-methylsulfanylacetate, (Methylthio)acetic Acid Methyl Ester, Methyl S-methylthioglycolate
Methyl 2-(methylthio)acetate (CAS 16630-66-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H8O2S and a molecular weight of 120.170 g/mol. Key properties include a boiling point of 157.3±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 60.0±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 16630-66-3
- Jingsj CID
- J-1176-7
- Molecular Formula
- C4H8O2S
- Molecular Weight
- 120.170 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 157.3±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 60.0±0.0 °C |
| Exact Mass | 120.024498 |
| PSA | 51.60000 |
| LogP | 0.82 |
| Vapor Pressure | 2.8±0.3 mmHg at 25°C |
| Refractive Index | 1.454 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
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 Methyl 2-(methylthio)acetate?
The CAS number of Methyl 2-(methylthio)acetate is 16630-66-3.
What are the molecular formula and molecular weight of Methyl 2-(methylthio)acetate?
Methyl 2-(methylthio)acetate has molecular formula C4H8O2S and molecular weight 120.170 g/mol.
Is Methyl 2-(methylthio)acetate hazardous?
Methyl 2-(methylthio)acetate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl 2-(methylthio)acetate (CAS 16630-66-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1176-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.