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4-Bromothiazole

Also known as: 4-Bromo-1,3-thiazole, 4-bromothiazol, Thiazole, 4-bromo-, MFCD06657592

4-Bromothiazole (CAS 34259-99-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H2BrNS and a molecular weight of 164.024 g/mol. Key properties include a boiling point of 197.4±13.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 73.2±19.8 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34259-99-9
Jingsj CID
J-1305090-3
Molecular Formula
C3H2BrNS
Molecular Weight
164.024 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point197.4±13.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point73.2±19.8 °C
Exact Mass162.909119
PSA41.13000
LogP1.49
Vapor Pressure0.5±0.4 mmHg at 25°C
Refractive Index1.605

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • 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-Bromothiazole?

The CAS number of 4-Bromothiazole is 34259-99-9.

What are the molecular formula and molecular weight of 4-Bromothiazole?

4-Bromothiazole has molecular formula C3H2BrNS and molecular weight 164.024 g/mol.

Is 4-Bromothiazole hazardous?

4-Bromothiazole has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.

What are the upstream and downstream products of 4-Bromothiazole?

For 4-Bromothiazole, Upstream Products: 2,4-Dibromothiazole, 3-(Methylthio)thiophene, 2,4,5-Tribromothiazole; Downstream Products: Thiazole, 4-Bromo-2-(trimethylsilyl)thiazole.

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-Bromothiazole (CAS 34259-99-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1305090-3 (accessed 2026-11-09).

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