2,5-Diaminopyridine dihydrochloride
2,5-Diaminopyridine dihydrochloride (CAS 26878-35-3) is a pyridine derivative with the molecular formula C5H7N3 · 2HCl and a molecular weight of 182.05 g/mol. This compound serves as a valuable building block in chemical synthesis, particularly in the creation of novel organic-inorganic hybrid materials and coordination compounds. It is supplied with an assay of 97% by Tech Serve Solutions.
- Synonyms
- C5H7N3 · 2HCl

Synthesis of Organic-Inorganic Hybrid Compounds
2,5-Diaminopyridine dihydrochloride has been employed in the synthesis of hybrid compounds such as (C5H9N3)ZnCl4 · H2O, showcasing its utility in creating materials with combined organic and inorganic characteristics.
Precursor for Coordination Complexes
This compound acts as a precursor in the formation of coordination complexes, including (2-amino-5 ammoniopyridinium)[CuCl4]2, demonstrating its role in the development of metal-containing chemical structures.
Heterocyclic Building Block
As a pyridine derivative, 2,5-Diaminopyridine dihydrochloride functions as a versatile heterocyclic building block for more complex molecular architectures in research and development.
| Molecular weight | 182.05 |
|---|---|
| Empirical formula | C5H7N3 · 2HCl |
| Assay | 97% |
| Application | 2,5-Diaminopyridine dihydrochloride was used in the synthesis of:• organic-inorganic hybrid compound, (C5H9N3)ZnCl4 .H2O1• (2-amino-5 ammoniopyridinium)[CuCl4]2 |
| Melting point | 264 °C (dec.)(lit.) |

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) | 26-37/39 |
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 2,5-Diaminopyridine dihydrochloride used for?
+
2,5-Diaminopyridine dihydrochloride is primarily used as a building block in chemical synthesis, including the creation of organic-inorganic hybrid compounds and coordination complexes.
What is the CAS number and formula for 2,5-Diaminopyridine dihydrochloride?
+
The CAS number for 2,5-Diaminopyridine dihydrochloride is 26878-35-3, and its empirical formula in Hill notation is C5H7N3 · 2HCl.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 2,5-Diaminopyridine dihydrochloride with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 2,5-Diaminopyridine dihydrochloride be handled safely?
+
Based on GHS information, 2,5-Diaminopyridine dihydrochloride is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be worn. Handle in a well-ventilated area.
Is 2,5-Diaminopyridine dihydrochloride a controlled substance?
+
The provided data does not indicate that 2,5-Diaminopyridine dihydrochloride is a controlled substance.
How is this chemical packed and exported?
+
Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, ensuring appropriate packaging and adherence to international shipping regulations for compounds like 2,5-Diaminopyridine dihydrochloride.
How can I request a sample or quote?
+
To request a sample or obtain a quote for 2,5-Diaminopyridine dihydrochloride, please contact our sales team through the website or by phone.
▶ 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