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4-Methyl-5-vinylthiazole

Also known as: 5-Ethenyl-4-methylthiazole, 4-Methyl-5-vinyl-1,3-thiazole, 5-Vinyl-4-methylthiazole, 4-methyl-5-vinyl-thiazol, 5-ethenyl-4-methyl-1,3-thiazole, 5-ethenyl-4-methyl-thiazol, Vinylsulfurol, VINYLSULFUROL

4-Methyl-5-vinylthiazole (CAS 1759-28-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H7NS and a molecular weight of 125.191 g/mol. Key properties include a melting point of −15 °C(lit.), a boiling point of 185.3±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 70.6±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, 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.
1759-28-0
Jingsj CID
J-38725-7
Molecular Formula
C6H7NS
Molecular Weight
125.191 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−15 °C(lit.)
Boiling Point185.3±9.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point70.6±0.0 °C
Exact Mass125.029922
PSA41.13000
LogP1.38
Vapor Pressure1.0±0.3 mmHg at 25°C
Refractive Index1.588

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2934100090
Summary2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-Methyl-5-vinylthiazole?

The CAS number of 4-Methyl-5-vinylthiazole is 1759-28-0.

What are the molecular formula and molecular weight of 4-Methyl-5-vinylthiazole?

4-Methyl-5-vinylthiazole has molecular formula C6H7NS and molecular weight 125.191 g/mol.

Is 4-Methyl-5-vinylthiazole hazardous?

4-Methyl-5-vinylthiazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 4-Methyl-5-vinylthiazole?

For 4-Methyl-5-vinylthiazole, Upstream Products: 2-(4-Methyl-1,3-thiazol-5-yl)ethanol, Thiamine chloride, Clomethiazole; Downstream Products: 4-Methylthiazole-5-carboxaldehyde, 5-ethyl-4-methylthiazole.

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

Last updated:

How to cite: Jingsj. "4-Methyl-5-vinylthiazole (CAS 1759-28-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38725-7 (accessed 2026-11-09).

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