4-Chloro-3-(trifluoromethyl)phenyl isothiocyanate
4-Chloro-3-(trifluoromethyl)phenyl isothiocyanate (CAS: 23163-86-2; Formula: ClC6H3(CF3)NCS) is a distinct organic chemical compound with a molecular weight of 237.63 g/mol. This isothiocyanate derivative is primarily utilised as a versatile building block in chemical synthesis, particularly within organic and sulfur chemistry. Its structure, featuring both a trifluoromethyl and a chlorine substituent on the phenyl ring, offers unique reactivity for constructing more complex molecules.

Organic Synthesis Intermediate
Serves as a key intermediate in the synthesis of various organic compounds. Its isothiocyanate functional group readily participates in reactions to form thioureas, heterocycles, and other sulfur-containing structures.
Pharmaceutical Research
Used in the development of potential pharmaceutical agents due to the prevalence of trifluoromethyl and isothiocyanate moieties in biologically active molecules.
Agrochemical Development
Contributes to the synthesis of novel agrochemicals, leveraging its reactive functional groups for creating compounds with potential pesticidal or herbicidal activity.
Material Science
Investigated for use in developing new materials, where its specific chemical structure may impart desirable properties.
| Molecular weight | 237.63 |
|---|---|
| Linear formula | ClC6H3(CF3)NCS |
| Assay | 97% |
| Boiling point | 248-251 °C(lit.) |
| Density | 1.47 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5905(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 110 °C / 230 °F |
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-27-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-Chloro-3-(trifluoromethyl)phenyl isothiocyanate primarily used for?
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This compound is primarily utilised as a versatile building block in organic synthesis, particularly in the creation of complex molecules for pharmaceutical and agrochemical research.
What is the CAS number and chemical formula for this product?
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The CAS number is 23163-86-2 and the chemical formula is ClC6H3(CF3)NCS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Chloro-3-(trifluoromethyl)phenyl isothiocyanate with an assay of 97%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 4-Chloro-3-(trifluoromethyl)phenyl isothiocyanate be handled safely?
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This compound is classified as Danger, with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment, including face shields, gloves, goggles, and suitable respirators, must be used. Handle in a well-ventilated area or fume hood.
How is this chemical packed and exported?
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As per UN 3265, 8/PGII classification, this chemical is packaged and exported according to stringent international regulations for corrosive materials.
How can I request a sample or quote for 4-Chloro-3-(trifluoromethyl)phenyl isothiocyanate?
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Please contact our sales department through our website or by phone to request a sample or a detailed quotation for 4-Chloro-3-(trifluoromethyl)phenyl isothiocyanate.
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