Skip to main content

Ethyl (methylthio)acetate

Also known as: ETHYL 2-(METHYLTHIO)ACETATE, ETHYL ALPHA-(METHYLTHIO)ACETATE, Ethyl (Methylthio)Acetate, Ethyl 2-(methylthio)acetate, METHYLTHIOACETIC ACID ETHYL ESTER, ethyl 2-methylsulfanylacetate, (Methylthio)acetic acid ethyl ester, FEMA 3835, MFCD00009182, EINECS 224-700-2

Ethyl (methylthio)acetate (CAS 4455-13-4) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C5H10O2S and a molecular weight of 134.19700 g/mol. Key properties include a boiling point of 70-72 °C25 mm Hg(lit.), a density of 1.043 g/mL at 25 °C(lit.) and a flash point of 59.4 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
4455-13-4
Jingsj CID
J-8408-2
Molecular Formula
C5H10O2S
Molecular Weight
134.19700 g/mol
Category
Solvents
Last updated
11/2/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point70-72 °C25 mm Hg(lit.)
Density1.043 g/mL at 25 °C(lit.)
Flash Point59.4 °C
Exact Mass134.04000
PSA51.60000
LogP0.91250
Refractive Indexn20/D 1.459(lit.)

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2930909090
Summary2930909090. 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 Ethyl (methylthio)acetate?

The CAS number of Ethyl (methylthio)acetate is 4455-13-4.

What are the molecular formula and molecular weight of Ethyl (methylthio)acetate?

Ethyl (methylthio)acetate has molecular formula C5H10O2S and molecular weight 134.19700 g/mol.

Is Ethyl (methylthio)acetate hazardous?

Ethyl (methylthio)acetate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

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

Last updated:

How to cite: Jingsj. "Ethyl (methylthio)acetate (CAS 4455-13-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8408-2 (accessed 2026-11-09).

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