4-(Trifluoromethyl)-2-pyrimidinethiol

Also known as: 2-Mercapto-4-(trifluoromethyl)pyrimidine, 4-(Trifluoromethyl)pyrimidine-2-thiol, 4-(Trifluoromethyl)-2(1H)-pyrimidinethione, 2-Pyrimidinethiol, 4-(trifluoromethyl)-, AKOS B022179, ART-CHEM-BB B022179, BUTTPARK 27\08-66, MFCD00115113

4-(Trifluoromethyl)-2-pyrimidinethiol (CAS 136547-17-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3F3N2S and a molecular weight of 180.151 g/mol. Key properties include a melting point of 164-166 °C(lit.), a boiling point of 234.2±50.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 95.4±30.1 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 136547-17-6
Jingsj CID: J-9642-4
Molecular Formula: C₅H₃F₃N₂S
Molecular Weight: 180.151 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	164-166 °C(lit.)
Boiling Point	234.2±50.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	95.4±30.1 °C
Exact Mass	179.996902
PSA	64.58000
LogP	-0.54
Vapor Pressure	0.1±0.4 mmHg at 25°C
Refractive Index	1.495

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

H301 — Toxic if swallowed
H311 — Toxic in contact with skin
H331 — Toxic if inhaled

Frequently Asked Questions

What is the CAS number of 4-(Trifluoromethyl)-2-pyrimidinethiol?

The CAS number of 4-(Trifluoromethyl)-2-pyrimidinethiol is 136547-17-6.

What are the molecular formula and molecular weight of 4-(Trifluoromethyl)-2-pyrimidinethiol?

4-(Trifluoromethyl)-2-pyrimidinethiol has molecular formula C5H3F3N2S and molecular weight 180.151 g/mol.

Is 4-(Trifluoromethyl)-2-pyrimidinethiol hazardous?

4-(Trifluoromethyl)-2-pyrimidinethiol has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.

What are the upstream and downstream products of 4-(Trifluoromethyl)-2-pyrimidinethiol?

For 4-(Trifluoromethyl)-2-pyrimidinethiol, Upstream Products: (E)-4-ethoxy-1,1,1-trifluorobut-3-en-2-one; Downstream Products: 2-(Methylthio)-4-(trifluoromethyl)pyrimidine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-(Trifluoromethyl)-2-pyrimidinethiol (CAS 136547-17-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9642-4 (accessed 2026-11-09).

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