4-Amino-3-chlorobenzonitrile
4-Amino-3-chlorobenzonitrile (CAS: 21803-75-8; Formula: H₂NC₆H₃(Cl)CN; MW: 152.58) is a specialised organic building block. Possessing both amine and nitrile functionalities, it serves as a versatile intermediate in organic synthesis. This compound is primarily utilised in the development of complex molecules within the pharmaceutical and agrochemical industries, enabling the construction of diverse chemical structures for research and development purposes.

Pharmaceutical Intermediate
Used in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates. Its structure allows for further functionalisation to create novel therapeutic agents.
Agrochemical Synthesis
A key building block for developing new pesticides, herbicides, and fungicides. It facilitates the creation of molecules with specific biological activities.
Organic Synthesis Reagent
Employed in academic and industrial research laboratories for constructing complex organic frameworks. It is valuable for its reactivity in various coupling and substitution reactions.
Material Science Research
Potentially used in the development of functional materials where its specific chemical properties can impart desired characteristics.
| Molecular weight | 152.58 |
|---|---|
| Linear formula | H2NC6H3(Cl)CN |
| Assay | 97% |
| Melting point | 102-105 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37 |
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 4-Amino-3-chlorobenzonitrile used for?
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4-Amino-3-chlorobenzonitrile is primarily used as a building block in organic synthesis, particularly in the pharmaceutical and agrochemical industries for developing new active ingredients and complex molecules.
What are the CAS number and formula for 4-Amino-3-chlorobenzonitrile?
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The CAS number is 21803-75-8, and its chemical formula is H₂NC₆H₃(Cl)CN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Amino-3-chlorobenzonitrile with an assay of 97%. This is a technical or research grade material and is not represented as USP, BP, EP, or pharmacopoeia grade.
How should 4-Amino-3-chlorobenzonitrile be handled safely?
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4-Amino-3-chlorobenzonitrile is classified as a Warning (GHS07) chemical. It can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area.
How is 4-Amino-3-chlorobenzonitrile packed and shipped?
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4-Amino-3-chlorobenzonitrile is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations.
How can I request a quote or sample for 4-Amino-3-chlorobenzonitrile?
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To request a quote or a sample of 4-Amino-3-chlorobenzonitrile, please contact our sales team through the website or by phone, providing your specific requirements.
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