Cyanomethyl benzodithioate
Cyanomethyl benzodithioate (CAS: 28740-46-7, C9H7NS2, MW: 193.29) is a dithiobenzoate compound used as a Chain Transfer Agent (CTA) in controlled radical polymerization. It is particularly effective for polymerizing methacrylates and methacrylamides, with secondary applicability to acrylates, acrylamides, and styrenes. This reagent is supplied by Tech Serve Solutions for advanced materials science and polymer synthesis research.
- IUPAC
- Cyanomethyl dithiobenzoate
Reagent for Controlled Radical Polymerization
Cyanomethyl benzodithioate serves as a key Chain Transfer Agent (CTA) in RAFT (Reversible Addition-Fragmentation chain Transfer) polymerization. It enables precise control over polymer molecular weight, architecture, and polydispersity.
Methacrylate and Methacrylamide Polymerization
This dithiobenzoate derivative exhibits excellent efficacy in the controlled polymerization of methacrylates and methacrylamides. It facilitates the synthesis of well-defined polymers from these monomers.
Polymer Science Research
Utilised in academic and industrial research for developing novel polymeric materials with specific properties. Its ability to mediate controlled polymerization is valuable for advanced polymer design.
| Molecular weight | 193.29 |
|---|---|
| Empirical formula | C9H7NS2 |
| Assay | 98% (HPLC) |
| Storage temperature | 2-8°C |
| Application | RAFT agent for controlled radical polymerization, especially suited for the polymerization of methacrylates/methacrylamides, and to a lesser extent acrylates/acrylamides and styrenes. Chain Transfer Agent (CTA) |
| Melting point | 42-47 °C |
Hazard statements
- H301Toxic if swallowed
- H317May cause an allergic skin reaction
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
| Transport (UN / ADR) | UN 3276 6.1 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/24/25-43 |
| Safety statements (S) | 36/37-45 |
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 Cyanomethyl benzodithioate used for?
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Cyanomethyl benzodithioate is used as a Chain Transfer Agent (CTA) for controlled radical polymerization (RAFT), particularly effective for methacrylates and methacrylamides.
What are the CAS number and formula for Cyanomethyl benzodithioate?
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The CAS number is 28740-46-7 and the empirical formula is C9H7NS2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cyanomethyl benzodithioate with a purity of 98% (HPLC). We do not represent this product as USP, BP, or EP grade; it is intended for research and technical applications.
How should Cyanomethyl benzodithioate be handled safely?
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Cyanomethyl benzodithioate is classified as acutely toxic (oral, dermal, inhalation) and can cause an allergic skin reaction. Handle with appropriate personal protective equipment (gloves, lab coat, eye protection) in a well-ventilated area or fume hood. Refer to the Safety Data Sheet for full hazard information. Storage at 2-8°C is recommended.
Is Cyanomethyl benzodithioate a controlled substance?
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No, the provided data does not indicate that Cyanomethyl benzodithioate is a controlled substance.
How is Cyanomethyl benzodithioate packed and shipped?
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This product is shipped according to UN 3276, Class 6.1, Packing Group III regulations. It is typically stored under refrigeration at 2-8°C.
How can I request a quote or sample?
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To request a quote or sample of Cyanomethyl benzodithioate, please contact the Tech Serve Solutions sales team through our website or by phone.
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