2,6-Diamino-4-chloropyrimidine
2,6-Diamino-4-chloropyrimidine (CAS: 156-83-2), with a molecular formula of C4H5ClN4 and a molecular weight of 144.56 g/mol, is a halogenated heterocyclic compound. It serves as a crucial building block in organic synthesis and chemical research. This pyrimidine derivative is valuable for constructing more complex molecules, particularly within the pharmaceutical and agrochemical sectors, owing to its reactive chlorine atom and amino functionalities. It is supplied by TSS at 98% purity.
- IUPAC
- 4-Chloro-2,6-diaminopyrimidine
- Synonyms
- 4-Chloro-2,6-diaminopyrimidine

Organic Synthesis Intermediate
This compound is a versatile intermediate for the synthesis of diverse organic molecules. Its pyrimidine core and chlorine substituent enable participation in various coupling and substitution reactions.
Pharmaceutical Research
Utilised as a precursor in the development of potential drug candidates. The structural features of 2,6-Diamino-4-chloropyrimidine are relevant for creating novel heterocyclic pharmacophores.
Agrochemical Development
Contributes to the creation of new agrochemical agents. The unique arrangement of functional groups can be explored for designing compounds with biological activity.
Material Science Exploration
Can be employed in the synthesis of functional materials where heterocyclic scaffolds are of interest for specific electronic or structural properties.
| Molecular weight | 144.56 |
|---|---|
| Empirical formula | C4H5ClN4 |
| Assay | 98% |
| Melting point | 199-202 °C(lit.) |

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
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| 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 2,6-Diamino-4-chloropyrimidine used for?
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2,6-Diamino-4-chloropyrimidine is primarily used as a building block in organic synthesis, with applications in pharmaceutical research, agrochemical development, and material science exploration.
What is the CAS number and formula for 2,6-Diamino-4-chloropyrimidine?
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The CAS number is 156-83-2 and the empirical formula is C4H5ClN4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,6-Diamino-4-chloropyrimidine at 98% purity. We do not represent this product as USP, BP, or EP grade.
What are the primary safety considerations for handling 2,6-Diamino-4-chloropyrimidine?
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This compound is classified as Warning, with hazards including H302 (Harmful if swallowed), H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, such as a dust mask (N95), eyeshields, and gloves, should be used. Avoid breathing dust and ensure adequate ventilation.
How is 2,6-Diamino-4-chloropyrimidine packed, shipped, and exported?
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Tech Serve Solutions packs and ships this chemical in compliance with all relevant regulations for safe transport. As a global supplier, we manage the export of chemicals worldwide.
How can I request a sample or a quote for 2,6-Diamino-4-chloropyrimidine?
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To request a sample or a quote, please use the contact form on our website or call our sales team directly.
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