4-Amino-3,5-dichloropyridine
4-Amino-3,5-dichloropyridine (CAS: 228809-78-7), with the molecular formula C5H4Cl2N2 and a molecular weight of 163.00 g/mol, is a halogenated pyridine derivative. This chemical compound serves as a versatile building block in organic synthesis, particularly for the construction of complex heterocyclic structures. Its utility lies in its reactive functional groups, making it a valuable intermediate for research and development in pharmaceutical and agrochemical sectors.
- Synonyms
- C5H4Cl2N2

Organic Synthesis Intermediate
4-Amino-3,5-dichloropyridine is employed as a key intermediate in various organic synthesis pathways. Its structure allows for diverse chemical modifications, facilitating the creation of novel compounds with potential biological activity.
Pharmaceutical Research
This compound is utilised in the development of new drug candidates. Its pyridine core and halogen substituents can be incorporated into molecules designed to interact with specific biological targets.
Agrochemical Development
It serves as a precursor in the synthesis of potential agrochemicals, such as pesticides or herbicides. The dichloropyridine moiety can contribute to the efficacy and properties of such agents.
Heterocyclic Chemistry
As a halogenated heterocyclic building block, it is useful for constructing more complex heterocyclic systems, expanding the scope of medicinal and materials chemistry research.
| Molecular weight | 163.00 |
|---|---|
| Empirical formula | C5H4Cl2N2 |


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) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38-41 |
| Safety statements (S) | 26-39 |
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 4-Amino-3,5-dichloropyridine used for?
+
4-Amino-3,5-dichloropyridine is primarily used as a building block in organic synthesis, particularly in pharmaceutical and agrochemical research for the development of new compounds and heterocyclic structures.
What is the CAS number and molecular formula for 4-Amino-3,5-dichloropyridine?
+
The CAS number is 228809-78-7 and the molecular formula is C5H4Cl2N2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-Amino-3,5-dichloropyridine for research and development purposes. The specific grade and purity are available upon request, and it is not supplied as USP, BP, or EP grade.
How should 4-Amino-3,5-dichloropyridine be handled safely?
+
4-Amino-3,5-dichloropyridine is a Danger substance. It is harmful if swallowed, causes skin irritation, causes serious eye damage, and may cause respiratory irritation. Handle with appropriate personal protective equipment, including gloves, eye protection, and respiratory protection in a well-ventilated area. Avoid breathing dust/fume/gas/mist/vapours/spray.
How is 4-Amino-3,5-dichloropyridine packed and shipped?
+
Tech Serve Solutions packs and ships chemicals in compliance with international regulations for safe transport. Details on specific packaging and shipping for 4-Amino-3,5-dichloropyridine can be provided upon inquiry.
How can I request a quote or sample for 4-Amino-3,5-dichloropyridine?
+
To request a quote or sample of 4-Amino-3,5-dichloropyridine, please contact our sales team through our website or via direct email, providing your specific requirements.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis