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N-(2-Mercaptoethyl)acetamide

Also known as: N-Acetylcysteamine, Acetylcysteamine, 2-Acetamidoethanethiol, N-(2-Sulfanylethyl)acetamide, N-Acetyl-2-mercaptoethylamine, N-Acetyl-β-mercaptoethylamine, N-Acetylmercaptoethylamine, NSC 38835, Acetamide, N-(2-mercaptoethyl)-, Cysteamine, N-acetyl-, PS-5 Impurity 1 (N-(2-sulfanylethyl)acetamide)

N-(2-Mercaptoethyl)acetamide (CAS 1190-73-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C4H9NOS and a molecular weight of 119.18500 g/mol. Key properties include a melting point of 6-7ºC(lit.), a boiling point of 138-140ºC7 mm Hg(lit.), a density of 1.121 g/mL at 25ºC(lit.) and a flash point of >110.0 °C. 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 Nov 3, 2026.

CAS No.
1190-73-4
Jingsj CID
J-39139-9
Molecular Formula
C4H9NOS
Molecular Weight
119.18500 g/mol
Category
Organic Bases
Last updated
11/3/2026

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Physicochemical Properties

Melting Point6-7ºC(lit.)
Boiling Point138-140ºC7 mm Hg(lit.)
Density1.121 g/mL at 25ºC(lit.)
Flash Point>110.0 °C
Exact Mass119.04000
PSA67.90000
LogP0.44320
Vapor Pressure0.00289mmHg at 25°C
Refractive Indexn20/D 1.511(lit.)

GHS Safety & Compliance

IrritantSignal word: Warning
  • 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 N-(2-Mercaptoethyl)acetamide?

The CAS number of N-(2-Mercaptoethyl)acetamide is 1190-73-4.

What are the molecular formula and molecular weight of N-(2-Mercaptoethyl)acetamide?

N-(2-Mercaptoethyl)acetamide has molecular formula C4H9NOS and molecular weight 119.18500 g/mol.

Is N-(2-Mercaptoethyl)acetamide hazardous?

N-(2-Mercaptoethyl)acetamide 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 N-(2-Mercaptoethyl)acetamide?

For N-(2-Mercaptoethyl)acetamide, Upstream Products: N,S-Diacetylcysteamine, Cysteamine hydrochloride, Thioacetic acid; Downstream Products: N,S-Diacetylcysteamine, 2-Methyl-2-thiazoline.

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

Last updated:

How to cite: Jingsj. "N-(2-Mercaptoethyl)acetamide (CAS 1190-73-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39139-9 (accessed 2026-11-09).

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