4-(Trifluoromethylthio)benzaldehyde

4-(三氟甲基硫代)苯甲醛

Also known as: 4-[(Trifluoromethyl)sulfanyl]benzaldehyde, 4-[(Trifluoromethyl)thio]benzaldehyde, Benzaldehyde, 4-[(trifluoromethyl)thio]-, p-(Trifluoromethylthio)benzaldehyde, 4-((Trifluoromethyl)thio)benzaldehyde, 4-(trifluoromethylsulfanyl)benzaldehyde

4-(Trifluoromethylthio)benzaldehyde (CAS 4021-50-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H5F3OS and a molecular weight of 206.185 g/mol. It is also known as 4-[(Trifluoromethyl)sulfanyl]benzaldehyde, 4-[(Trifluoromethyl)thio]benzaldehyde and Benzaldehyde, 4-[(trifluoromethyl)thio]-. Key properties include a melting point of 29-31 °C(lit.), a boiling point of 182.8±40.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 64.4±27.3 °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.
4021-50-5
Jingsj CID
J-22412-1
Molecular Formula
C8H5F3OS
Chinese Name
4-(三氟甲基硫代)苯甲醛
Molecular Weight
206.185 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point29-31 °C(lit.)
Boiling Point182.8±40.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point64.4±27.3 °C
Exact Mass206.001312
PSA42.37000
LogP3.35
Vapor Pressure0.8±0.3 mmHg at 25°C
Refractive Index1.508

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 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 4-(Trifluoromethylthio)benzaldehyde?

The CAS number of 4-(Trifluoromethylthio)benzaldehyde is 4021-50-5.

What are the molecular formula and molecular weight of 4-(Trifluoromethylthio)benzaldehyde?

4-(Trifluoromethylthio)benzaldehyde has molecular formula C8H5F3OS and molecular weight 206.185 g/mol.

Is 4-(Trifluoromethylthio)benzaldehyde hazardous?

4-(Trifluoromethylthio)benzaldehyde has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

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

Last updated:

How to cite: Jingsj. "4-(Trifluoromethylthio)benzaldehyde (CAS 4021-50-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22412-1 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.