3,4-Diamino-2-chloropyridine
3,4-Diamino-2-chloropyridine (CAS: 39217-08-8) is a heterocyclic organic compound with the molecular formula C5H6ClN3 and a molecular weight of 143.57 g/mol. This pyridine derivative serves as a valuable building block in organic synthesis, particularly for the creation of more complex molecules within pharmaceutical and chemical research sectors. Its structure lends itself to various chemical transformations.
- IUPAC
- 2-Chloropyridine-3,4-diamine
- Synonyms
- 2-Chloropyridine-3,4-diamine

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of novel organic compounds. Its reactive amine and chloro functionalities allow for diverse chemical modifications.
Pharmaceutical Research
A crucial building block for the development of new pharmaceutical agents and drug candidates. Its heterocyclic nature is common in many biologically active molecules.
Heterocyclic Chemistry
Employed in the construction of complex heterocyclic systems. The pyridine core is a common motif in medicinal chemistry and materials science.
| Molecular weight | 143.57 |
|---|---|
| Empirical formula | C5H6ClN3 |
| Assay | 97% |
| Melting point | 158-163 °C |

Hazard statements
- H301Toxic if swallowed
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36-43 |
| 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 3,4-Diamino-2-chloropyridine used for?
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3,4-Diamino-2-chloropyridine is primarily used as a building block in organic synthesis, particularly in pharmaceutical research and the development of new heterocyclic compounds.
What is the CAS number and chemical formula for 3,4-Diamino-2-chloropyridine?
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The CAS number is 39217-08-8, and the empirical formula (Hill notation) is C5H6ClN3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-Diamino-2-chloropyridine with an assay of 97%. This is a technical grade suitable for research and synthesis; TSS does not represent it as USP, BP, or EP grade.
How should 3,4-Diamino-2-chloropyridine be handled safely?
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Danger: Toxic if swallowed (H301), may cause an allergic skin reaction (H317), and causes serious eye irritation (H319). Wear protective gloves and eye/face protection (P280). If swallowed, immediately call a POISON CENTER or doctor (P301 + P310). If in eyes, rinse cautiously with water for several minutes (P305 + P351 + P338).
Is 3,4-Diamino-2-chloropyridine a controlled substance?
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The provided safety data does not indicate that 3,4-Diamino-2-chloropyridine is a controlled substance.
How is 3,4-Diamino-2-chloropyridine packed and exported?
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Products are packed securely for transport according to international regulations. TSS is an experienced global exporter of fine chemicals and reagents.
How can I request a sample or quote for 3,4-Diamino-2-chloropyridine?
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Please contact our sales team directly via the website or phone to request a sample or obtain a quotation.
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