2,3-Diaminopyridine Chemical Properties

Melting point:

110-115 °C (lit.)

Boiling point:

195°C 55mm

Density 

1.1118 (rough estimate)

refractive index 

1.5340 (estimate)

Flash point:

205 °C

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

H2O: soluble50mg/mL, opaque (brown to very dark brown)

form 

Solid

pka

6.78±0.36(Predicted)

color 

Very Dark Brown

Water Solubility 

100 g/L (20 ºC)

Sensitive 

Air Sensitive

BRN 

109869

InChIKey

ZZYXNRREDYWPLN-UHFFFAOYSA-N

CAS DataBase Reference

452-58-4(CAS DataBase Reference)

NIST Chemistry Reference

2,3-Pyridinediamine(452-58-4)

Safety Information

Hazard Codes 

Xn,Xi,T

Risk Statements 

22-36/37/38-25

Safety Statements 

26-36/37-45-37/39-28A-36

RIDADR 

UN 2811

WGK Germany 

3

RTECS 

US7548000

F 

9

Hazard Note 

Irritant

HazardClass 

6.1

PackingGroup 

II

HS Code 

29333999

MSDS

• Language:English Provider:Pyridine-2,3-diamine
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2,3-Diaminopyridine Usage And Synthesis

Chemical Properties

Brown powder

Uses

2,3-Diaminopyridine was used in the synthesis of 2,3-diaminopyridinium-4-hydroxybenzoate1. It was used as internal standard in analysis of poly(amidoamine)dendrimers having different terminal functionalities by capillary electrophoresis. It was used as reagent in synthesis of imidazopyridines and organometallic complexes.

General Description

2,3-Diaminopyridine forms the bis-condensed Schiff base with salicylaldehyde. It forms charge transfer complex with tetrachloro-p-benzoquinone and tetracyanoethylene.

Purification Methods

It crystallises from *benzene and sublimes in vacuo. [Beilstein 22/11 V 241.]

2,3-Diaminopyridine(452-58-4)Related Product Information

• Iminodiacetonitrile
• 2-Aminopyridine
• 3,4-Diaminopyridine
• PYRIDINE-2,4-DIAMINE
• 4-Dimethylaminopyridine
• Pyridine
• 4-Aminopyridine
• 3-Aminopyridine
• 2,5-Diaminopyridine
• HYDRAZINE
• 2,6-Diaminopyridine
• Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate
• 2-Amino-3-nitro-6-picoline
• 2-AMINO-6-CHLORO-3-NITROPYRIDINE
• Pirenzepine
• 2-Amino-3-nitro-4-picoline
• Phenazopyridine hydrochloride
• 2-Nitro-3-pyridinamine