8-Chloro-1,2,4-triazolo[4,3-a]pyrazine
8-Chloro-1,2,4-triazolo[4,3-a]pyrazine (CAS: 68774-77-6) is a heterocyclic organic compound with the molecular formula C5H3ClN4 and a molecular weight of 154.56 g/mol. It serves as a valuable building block in chemical synthesis, particularly for the development of novel pharmaceutical intermediates and research chemicals. Its structure, featuring a fused triazolopyrazine ring system with a chlorine substituent, allows for diverse synthetic modifications.
- Synonyms
- 3-a]pyrazine,68774-77-6, C5H3ClN4
![8-Chloro-1,2,4-triazolo[4,3-a]pyrazine (C5H3ClN4) — chemical structure, CAS 68774-77-6; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F68774-77-6.png&w=3840&q=75)
Pharmaceutical Intermediate Synthesis
Used as a key intermediate in the synthesis of active pharmaceutical ingredients (APIs). Its heterocyclic structure is conducive to building complex molecular frameworks relevant to drug discovery.
Chemical Research and Development
A versatile building block employed in academic and industrial research laboratories for exploring new chemical entities and reaction pathways.
Heterocyclic Chemistry
Facilitates the construction of complex heterocyclic systems, contributing to the advancement of synthetic organic chemistry and materials science.
| Molecular weight | 154.56 |
|---|---|
| Empirical formula | C5H3ClN4 |
| Assay | 97% |
| Melting point | 215-220 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
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 8-Chloro-1,2,4-triazolo[4,3-a]pyrazine used for?
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8-Chloro-1,2,4-triazolo[4,3-a]pyrazine is primarily used as a building block in chemical synthesis, especially for developing pharmaceutical intermediates and in research and development settings.
What are the CAS number and formula for this compound?
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The CAS number is 68774-77-6, and the empirical formula is C5H3ClN4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 8-Chloro-1,2,4-triazolo[4,3-a]pyrazine with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 8-Chloro-1,2,4-triazolo[4,3-a]pyrazine be handled?
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This compound is classified as a Warning. It is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area, avoiding dust formation and contact with skin, eyes, and clothing.
Is this product available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents, including 8-Chloro-1,2,4-triazolo[4,3-a]pyrazine.
How can I request a sample or quote?
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To request a sample or a quote for 8-Chloro-1,2,4-triazolo[4,3-a]pyrazine, please contact our sales team through the website or by phone.
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