2-Amino-3-chloropyrazine
2-Amino-3-chloropyrazine (CAS: 6663-73-6) is a heterocyclic organic compound with the molecular formula C4H4ClN3. This white to off-white crystalline solid serves as a valuable building block in organic synthesis, particularly for the creation of more complex halogenated pyrazine derivatives. Its chemical structure makes it a useful intermediate for research and development in various chemical sectors.

Organic Synthesis Intermediate
This compound functions as a key intermediate in the synthesis of diverse organic molecules. It is particularly useful for introducing the pyrazine moiety into larger structures.
Heterocyclic Chemistry Research
As a halogenated heterocycle, it is employed in academic and industrial research for exploring novel chemical reactions and developing new synthetic pathways.
Pharmaceutical Intermediate Development
Its structure lends itself to the development of new pharmaceutical agents, where the pyrazine ring is a common feature in biologically active compounds.
| Molecular weight | 129.55 |
|---|---|
| Empirical formula | C4H4ClN3 |
| Assay | 97% |
| Melting point | 164-169 °C |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Water hazard class (WGK, DE) | 1 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26-36/37/39 |
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 2-Amino-3-chloropyrazine used for?
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2-Amino-3-chloropyrazine is primarily used as a building block and intermediate in organic synthesis, particularly in the research and development of new chemical entities and pharmaceutical agents.
What are the CAS number and formula for 2-Amino-3-chloropyrazine?
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The CAS number for 2-Amino-3-chloropyrazine is 6663-73-6, and its molecular formula is C4H4ClN3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Amino-3-chloropyrazine with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 2-Amino-3-chloropyrazine be handled?
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Handling requires caution. It is labelled with Danger and has hazard statements H302 (Harmful if swallowed), H315 (Causes skin irritation), H318 (Causes serious eye damage), and H335 (May cause respiratory irritation). Appropriate personal protective equipment (PPE) such as gloves, eye protection, and respiratory protection should be used in a well-ventilated area. Follow precautionary statements P261, P280, and P305+P351+P338.
Is 2-Amino-3-chloropyrazine a controlled substance?
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The provided data does not indicate that 2-Amino-3-chloropyrazine is a controlled substance.
How can I request a sample or quote for 2-Amino-3-chloropyrazine?
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To request a sample or quote, please use the contact form on our website or contact our sales department directly with your inquiry and preferred quantity.
How is 2-Amino-3-chloropyrazine packed and shipped?
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2-Amino-3-chloropyrazine is carefully packed to meet international shipping regulations for chemicals and is exported globally by Tech Serve Solutions.
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