trans-3,4-Dichloro-β-nitrostyrene
trans-3,4-Dichloro-β-nitrostyrene (CAS: 18984-16-2), with the molecular formula Cl2C6H3CH=CHNO2 and a molecular weight of 218.04 g/mol, is a halogenated organic compound. This chemical serves as a versatile building block in organic synthesis, particularly within the realms of chemical research and development. Its structure features a styrene backbone substituted with chlorine atoms and a nitro group, making it valuable for introducing specific functionalities in complex molecule construction.
- Synonyms
- Cl2C6H3CH=CHNO2

Organic Synthesis Intermediate
trans-3,4-Dichloro-β-nitrostyrene is utilised as a key intermediate in the synthesis of various organic compounds. Its reactive functional groups allow for diverse chemical transformations, supporting the development of novel molecular structures.
Research and Development
This compound finds application in research laboratories exploring new synthetic routes and chemical methodologies. It acts as a valuable building block for academic and industrial R&D projects focused on heterocyclic chemistry and medicinal chemistry.
Building Block for Specialty Chemicals
As an organic building block, it contributes to the construction of specialty chemicals with tailored properties. The presence of both halogen and nitro functionalities offers unique reactivity for targeted synthesis.
| Molecular weight | 218.04 |
|---|---|
| Linear formula | Cl2C6H3CH=CHNO2 |
| Assay | 97% |
| Melting point | 93-97 °C(lit.) |

Hazard statements
- H400Very toxic to aquatic life
Precautionary statements
- P273Avoid release to the environment
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 50/53 |
| Safety statements (S) | 36/37-60-61 |
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 trans-3,4-Dichloro-β-nitrostyrene used for?
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trans-3,4-Dichloro-β-nitrostyrene is primarily used as an intermediate and building block in organic synthesis and for research and development purposes.
What are the CAS number and molecular formula for trans-3,4-Dichloro-β-nitrostyrene?
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The CAS number is 18984-16-2, and its molecular formula is Cl2C6H3CH=CHNO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies trans-3,4-Dichloro-β-nitrostyrene with a minimum purity of 97%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for trans-3,4-Dichloro-β-nitrostyrene?
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This compound is classified under GHS09 with a signal word of Warning, carrying hazard statement H400 (Very toxic to aquatic life). Appropriate personal protective equipment, including eyeshields and gloves, should be worn. It is advised to avoid release to the environment (P273).
How is trans-3,4-Dichloro-β-nitrostyrene packed and shipped?
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trans-3,4-Dichloro-β-nitrostyrene is packed and shipped according to international regulations for hazardous materials, identified as UN 3077, Class 9, Packing Group III.
How can I request a sample or quote for trans-3,4-Dichloro-β-nitrostyrene?
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To request a sample or obtain a quotation, please contact the Tech Serve Solutions sales department through our website or by direct inquiry, providing your contact details and the product CAS number.
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