2-Amino-4,6-dichloropyrimidine
2-Amino-4,6-dichloropyrimidine (CAS 56-05-3) is a halogenated heterocyclic compound with the molecular formula C4H3Cl2N3 and a molecular weight of 163.99 g/mol. This pyrimidine derivative serves as a valuable building block in organic synthesis, particularly in the development of novel compounds for research and pharmaceutical applications. Its structure allows for diverse chemical modifications, making it a key intermediate in complex molecular architectures.
- Synonyms
- C4H3Cl2N34,6-Dichloro-2-pyrimidinamine2-Pyrimidinamine, 4,6-dichloro-

Organic Synthesis Intermediate
Utilised as a versatile building block in the synthesis of more complex organic molecules. Its reactive sites enable participation in various coupling and substitution reactions.
Pharmaceutical Research
Serves as a key intermediate in the research and development of potential pharmaceutical agents. Its heterocyclic structure is a common motif in biologically active compounds.
Heterocyclic Chemistry
Employed in the study and synthesis of novel heterocyclic compounds. The presence of chlorine atoms and an amino group offers multiple avenues for derivatisation.
| Molecular weight | 163.99 |
|---|---|
| Empirical formula | C4H3Cl2N3 |
| Assay | ≥98.0% (HPLC) |
| Grade | purum |
| Melting point | 219-222 °C(lit.)220-223 °C |

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 |
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-4,6-dichloropyrimidine used for?
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2-Amino-4,6-dichloropyrimidine is primarily used as a building block in organic synthesis and in pharmaceutical research for developing new compounds.
What is the CAS number and chemical formula for 2-Amino-4,6-dichloropyrimidine?
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The CAS number is 56-05-3, and the chemical formula is C4H3Cl2N3.
What grade and purity does Tech Serve Solutions supply for 2-Amino-4,6-dichloropyrimidine?
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Tech Serve Solutions supplies 2-Amino-4,6-dichloropyrimidine with a purity of ≥98.0% as determined by HPLC, specified as 'purum' grade. We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards unless explicitly stated.
How should 2-Amino-4,6-dichloropyrimidine be handled safely?
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2-Amino-4,6-dichloropyrimidine is classified with GHS07 (Warning) and carries hazard statements H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Appropriate personal protective equipment, including a dust mask (N95 US type), eyeshields, and gloves, should be worn. Handle in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive safety information.
Is 2-Amino-4,6-dichloropyrimidine a controlled substance?
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The provided data does not indicate that 2-Amino-4,6-dichloropyrimidine (CAS 56-05-3) is a controlled substance.
How is 2-Amino-4,6-dichloropyrimidine packed and exported?
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Tech Serve Solutions, a specialist global supplier and exporter, ensures appropriate packaging for safe transit and export of chemical products like 2-Amino-4,6-dichloropyrimidine.
How can I request a quote or sample for 2-Amino-4,6-dichloropyrimidine?
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Please contact our sales department or use the online enquiry form on our website to request a quote or a sample of 2-Amino-4,6-dichloropyrimidine.
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