4-Nitro-3-(trifluoromethyl)benzenesulfonyl chloride
4-Nitro-3-(trifluoromethyl)benzenesulfonyl chloride (CAS: 39234-83-8; Formula: O2NC6H3(CF3)SO2Cl) is a chemical compound with a molecular weight of 289.62 g/mol. This substance functions as a versatile building block in organic synthesis. Its characteristic sulfonyl chloride group and trifluoromethyl substituent make it a valuable intermediate for the creation of more complex molecules, particularly within the pharmaceutical and agrochemical research sectors. TSS supplies this compound at 97% purity.

Organic Synthesis Intermediate
Utilised as a key building block in the synthesis of novel organic compounds. Its reactive sulfonyl chloride moiety allows for facile derivatization, enabling the construction of diverse molecular architectures.
Pharmaceutical Research
Serves as a precursor in the development of potential pharmaceutical agents. The presence of the trifluoromethyl group can influence lipophilicity and metabolic stability, desirable traits in drug discovery.
Agrochemical Development
Employed in the synthesis of new agrochemical compounds. Its structural features may contribute to the efficacy and properties of pesticides and herbicides.
Material Science
Potential applications in the synthesis of specialised polymers or functional materials where its unique electronic and structural properties can be leveraged.
| Molecular weight | 289.62 |
|---|---|
| Linear formula | O2NC6H3(CF3) · SO2Cl |
| Assay | 97% |
| Melting point | 63-67 °C(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 | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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-Nitro-3-(trifluoromethyl)benzenesulfonyl chloride used for?
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4-Nitro-3-(trifluoromethyl)benzenesulfonyl chloride is primarily used as a building block and intermediate in organic synthesis, particularly for the development of pharmaceutical and agrochemical compounds.
What is the CAS number and chemical formula for this compound?
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The CAS number is 39234-83-8, and the chemical formula is O2NC6H3(CF3)SO2Cl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Nitro-3-(trifluoromethyl)benzenesulfonyl chloride with an assay of 97%. TSS does not represent this product as USP, BP, or EP grade.
How should 4-Nitro-3-(trifluoromethyl)benzenesulfonyl chloride be handled safely?
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This compound causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and suitable respiratory protection, is essential. Handle in a well-ventilated area and avoid contact with skin, eyes, and clothing. Refer to the Safety Data Sheet for comprehensive handling instructions.
How is this chemical packed, shipped, and exported?
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This chemical is packed according to international regulations for hazardous materials. We handle worldwide shipping and export, ensuring compliance with all relevant transport and customs requirements.
How can I request a sample or a quote for 4-Nitro-3-(trifluoromethyl)benzenesulfonyl chloride?
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Please contact our sales department via the website or email to request a sample or a formal quotation. We will respond promptly with detailed information and pricing.
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