(Phenylthio)acetyl chloride
(Phenylthio)acetyl chloride (CAS: 7031-27-8) is an organic chemical compound with the linear formula C6H5SCH2COCl and a molecular weight of 186.66 g/mol. As a reactive acid halide, it serves as a valuable building block in organic synthesis. It is primarily utilised in the chemical industry for the introduction of the (phenylthio)acetyl group into various organic molecules, facilitating the creation of more complex structures and intermediates.
- IUPAC
- Thiophenoxyacetyl chloride

Organic Synthesis Intermediate
Utilised as a key intermediate for the synthesis of pharmaceuticals, agrochemicals, and other complex organic molecules. Its reactive acyl chloride functionality allows for facile derivatization.
Building Block for Specialty Chemicals
Serves as a versatile building block in the development of novel materials and specialty chemicals. The phenylthio group offers unique electronic and steric properties to target molecules.
Research and Development
Employed in research laboratories for the exploration of new synthetic pathways and the creation of novel chemical entities. Its reactivity makes it suitable for diverse research applications.
| Molecular weight | 186.66 |
|---|---|
| Linear formula | C6H5SCH2COCl |
| Assay | 97% |
| Density | 1.258 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5825(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 | 113 °C / 235.4 °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 (Phenylthio)acetyl chloride used for?
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(Phenylthio)acetyl chloride is used as an intermediate and building block in organic synthesis, particularly for introducing the (phenylthio)acetyl group into organic molecules for the creation of pharmaceuticals, agrochemicals, and specialty chemicals.
What is the CAS number and formula for (Phenylthio)acetyl chloride?
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The CAS number for (Phenylthio)acetyl chloride is 7031-27-8, and its linear formula is C6H5SCH2COCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (Phenylthio)acetyl chloride with an assay of 97%. This product is not represented as USP, BP, EP, or other pharmacopoeial grades.
How is (Phenylthio)acetyl chloride handled and what are the safety concerns?
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(Phenylthio)acetyl chloride is corrosive (H314) and requires careful handling with appropriate personal protective equipment, including face shields, gloves, and respirators. It should be handled in a well-ventilated area.
How is (Phenylthio)acetyl chloride packed, shipped, and exported?
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(Phenylthio)acetyl chloride is packed in compliance with relevant shipping regulations for hazardous materials (UN 3265, Class 8, PG II). Tech Serve Solutions is experienced in global export.
How can I request a sample or quote for (Phenylthio)acetyl chloride?
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To request a sample or quote for (Phenylthio)acetyl chloride, please contact our sales department through the website or by phone, providing your specific requirements.
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