Ethyl 2-cyano-3,3-bis(methylthio)acrylate
Ethyl 2-cyano-3,3-bis(methylthio)acrylate (CAS: 17823-58-4) is a specialized organic compound with the molecular formula C8H11NO2S2 and a molecular weight of 217.31 g/mol. This chemical building block is characterised by its unique structure featuring cyano, ester, and bis(methylthio) groups. It serves as a versatile intermediate in organic synthesis, particularly for the construction of heterocyclic compounds and other complex molecules.
- IUPAC
- Ethyl 2-cyano-3,3-bis(methylthio)-2-propenoate
- Synonyms
- Ethyl 2-cyano-3,3-bis(methylthio)-2-propenoate

Organic Synthesis Intermediate
Utilised as a key building block in the synthesis of various organic compounds, including pharmaceuticals and agrochemicals. Its reactive functional groups allow for diverse chemical transformations.
Heterocyclic Chemistry
Serves as a precursor for the synthesis of sulfur- and nitrogen-containing heterocyclic systems, which are prevalent in medicinal chemistry and materials science.
Chemical Research
A valuable reagent for academic and industrial research laboratories exploring new synthetic methodologies and novel molecular structures.
| Molecular weight | 217.31 |
|---|---|
| Empirical formula | C8H11NO2S2 |
| Assay | ≥98.0% (GC) |
| Composition | sulfur content, 28.9-30.1% |

Hazard statements
- H301Toxic if swallowed
- H311Toxic in contact with skin
- H331Toxic if inhaled
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 2811 6.1 / PGII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 23/24/25 |
| Safety statements (S) | 36/37/39 |
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 Ethyl 2-cyano-3,3-bis(methylthio)acrylate used for?
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Ethyl 2-cyano-3,3-bis(methylthio)acrylate (CAS: 17823-58-4) is primarily used as a versatile intermediate in organic synthesis, especially for creating complex organic molecules and heterocyclic compounds.
What are the CAS number and molecular formula?
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The CAS number for Ethyl 2-cyano-3,3-bis(methylthio)acrylate is 17823-58-4, and its molecular formula is C8H11NO2S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyl 2-cyano-3,3-bis(methylthio)acrylate with an assay of ≥98.0% (GC). This product is intended for research and industrial use; it is not supplied as USP, BP, or EP grade.
What are the safety and handling considerations for this compound?
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This compound is classified with GHS06 symbol and carries the signal word 'Danger'. It is labelled with hazard statements H301, H311, and H331, indicating it is toxic if swallowed, in contact with skin, and if inhaled. Handle with appropriate personal protective equipment (P261, P280) and follow emergency procedures (P301 + P310, P311).
How is this chemical packed and exported?
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This chemical is shipped as UN 2811, Class 6.1, Packing Group II, reflecting its hazardous nature. TSS ensures compliance with all regulations for safe packaging and international export.
How can I request a sample or a quote?
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To request a sample or a quote for Ethyl 2-cyano-3,3-bis(methylthio)acrylate, please contact our sales team through the website or by phone, providing your specific requirements.
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