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Isopropyl isothiocyanate

Also known as: 2-isothiocyanatopropane, Isopropyl mustard oil, Isothiocyanic acid isopropyl ester, IPNCS, Propane, 2-isothiocyanato-, N-isopropyl isothiocyanate

Isopropyl isothiocyanate (CAS 2253-73-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H7NS and a molecular weight of 101.170 g/mol. Key properties include a boiling point of 136-137 ºC, a density of 0.948 and a flash point of 40 ºC. 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 Aug 21, 2026.

CAS No.
2253-73-8
Jingsj CID
J-47809-1
Molecular Formula
C4H7NS
Molecular Weight
101.170 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point136-137 ºC
Density0.948
Flash Point40 ºC
Exact Mass101.029922
PSA44.45000
LogP1.82
Vapor Pressure7.6±0.3 mmHg at 25°C
Refractive Index1.486

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 Isopropyl isothiocyanate?

The CAS number of Isopropyl isothiocyanate is 2253-73-8.

What are the molecular formula and molecular weight of Isopropyl isothiocyanate?

Isopropyl isothiocyanate has molecular formula C4H7NS and molecular weight 101.170 g/mol.

Is Isopropyl isothiocyanate hazardous?

Isopropyl isothiocyanate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Isopropyl isothiocyanate?

For Isopropyl isothiocyanate, Upstream Products: Carbon disulphide, Isopropylamine, Isopropyl isocyanate; Downstream Products: 2-Mercaptobenzimidazole, 1,3-Diisopropyl-2-thiourea, 4-isopropyl-3-thiosemicarbazide.

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

Last updated:

How to cite: Jingsj. "Isopropyl isothiocyanate (CAS 2253-73-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47809-1 (accessed 2026-11-09).

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