3,5-Dichlorophenylhydrazine hydrochloride
3,5-Dichlorophenylhydrazine hydrochloride (CAS 63352-99-8), a chemical compound with the linear formula Cl₂C₆H₃NHNH₂ · HCl and a molecular weight of 213.49 g/mol, is supplied by Tech Serve Solutions. This white to off-white solid serves as a valuable intermediate in organic synthesis, particularly for the preparation of complex heterocyclic compounds and other fine chemicals. Its defined structure makes it a key building block in various chemical research and development applications.
- Synonyms
- Cl2C6H3NHNH2 · HCl

Intermediate in Organic Synthesis
3,5-Dichlorophenylhydrazine hydrochloride is utilised as a precursor in the synthesis of novel organic molecules. Its reactivity allows for the formation of diverse chemical structures, making it a fundamental component in multi-step synthetic routes.
Preparation of Heterocyclic Compounds
This compound has been specifically employed in the preparation of complex heterocyclic systems. For instance, it was used in the synthesis of [2-(3,5-dichlorophenyl)-1,1-dioxo-2,3-dihydro-1H-1λ⁶-[1,2,3,5]thiatriazol-4-yl]dimethylamine.
Research and Development
As a building block, 3,5-Dichlorophenylhydrazine hydrochloride is instrumental in research laboratories for exploring new chemical reactions and discovering novel compounds with potential applications in various scientific fields.
| Molecular weight | 213.49 |
|---|---|
| Linear formula | Cl2C6H3NHNH2 · HCl |
| Assay | 95% |
| Application | 3,5-Dichlorophenylhydrazine hydrochloride was used to prepare [2-(3,5-dichlorophenyl)-1,1-dioxo-2,3-dihydro-1H-1λ6-[1,2,3,5]thiatriazol-4-yl]dimethylamine1. |
| Melting point | 208-210 °C (dec.)(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-37/39 |
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 3,5-Dichlorophenylhydrazine hydrochloride used for?
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3,5-Dichlorophenylhydrazine hydrochloride (CAS 63352-99-8) is primarily used as a building block in organic synthesis, particularly for the preparation of heterocyclic compounds. It was notably used to synthesise [2-(3,5-dichlorophenyl)-1,1-dioxo-2,3-dihydro-1H-1λ⁶-[1,2,3,5]thiatriazol-4-yl]dimethylamine.
What are the CAS number and molecular formula for 3,5-Dichlorophenylhydrazine hydrochloride?
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The CAS number for 3,5-Dichlorophenylhydrazine hydrochloride is 63352-99-8. Its linear formula is Cl₂C₆H₃NHNH₂ · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Dichlorophenylhydrazine hydrochloride with an assay of 95%. We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the safety and handling considerations for 3,5-Dichlorophenylhydrazine hydrochloride?
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3,5-Dichlorophenylhydrazine hydrochloride is classified as harmful if swallowed, in contact with skin, or if inhaled, and causes skin and eye irritation, and may cause respiratory irritation (H302, H312, H315, H319, H332, H335). Appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves, should be used. Handle in a well-ventilated area.
How is 3,5-Dichlorophenylhydrazine hydrochloride packed and exported?
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3,5-Dichlorophenylhydrazine hydrochloride is carefully packed to ensure safe transit and compliance with international shipping regulations. Tech Serve Solutions is an experienced global supplier and exporter of fine chemicals.
How can I request a sample or quote for 3,5-Dichlorophenylhydrazine hydrochloride?
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To request a sample or a quote for 3,5-Dichlorophenylhydrazine hydrochloride, please contact our sales team through the website or by phone. We will be happy to assist you with your specific requirements.
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