26878-35-3

Basic information

• Product Name: 2,5-Diaminopyridine dihydrochloride
• Synonyms: 2,5-AMINOPYRIDINE DIHYDROCHLORIDE;2,5-DIAMINOPYRIDINE 2HCL;2,5-DIAMINOPYRIDINE DIHYDROCHLORIDE;IFLAB-BB F1995-0191;pyridine-2,5-diamine dihydrochloride;Diaminopyridinehydrochloride;2,5-Diaminopyridine-2-hydrochloride;2,5-Diamino-pyridine hydrochloride
• CAS NO: 26878-35-3
• Molecular Formula: C₅H₇N₃*2ClH
• Molecular Weight: 182.05
• EINECS: 248-083-4
• Product Categories: Pyridine;Heterocyclic Compounds;Pyridines;C5;Heterocyclic Building Blocks;Building Blocks;Chemical Synthesis;Heterocyclic Building Blocks
• Mol File: 26878-35-3.mol
• Article Data: 1

Chemical Properties

• Melting Point: 264 °C (dec.)(lit.)
• Boiling Point: 329.1 °C at 760 mmHg
• Flash Point: 179.1 °C
• Appearance: brownish-grey fine crystalline powder
• Vapor Pressure: 0.000182mmHg at 25°C
• Storage Temp.: Inert atmosphere,Room Temperature
• Water Solubility: 1000 g/L (20 ºC)
• Sensitive: Hygroscopic
• BRN: 3912365
• CAS DataBase Reference: 2,5-Diaminopyridine dihydrochloride(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-Diaminopyridine dihydrochloride(26878-35-3)
• EPA Substance Registry System: 2,5-Diaminopyridine dihydrochloride(26878-35-3)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-37/39-36
• RIDADR: 2811
• WGK Germany: 3
• HazardClass: 6.1
• PackingGroup: II
• Hazardous Substances Data: 26878-35-3(Hazardous Substances Data)

Usage

Chemical Properties

brownish-grey fine crystalline powder

Uses

2,5-Diaminopyridine dihydrochloride was used in the synthesis of:organic-inorganic hybrid compound, (C5H9N3)ZnCl4 .H2O(2-amino-5 ammoniopyridinium)[CuCl4]

InChI:InChI=1/C5H7N3/c6-4-1-2-5(7)8-3-4/h1-3H,6H2,(H2,7,8)/p+1

Downstream Products

• 69952-40-5 N,N′-(pyridine-2,5-diyl)dibenzamide 
• 372094-26-3 2,5-bis(2-Chloro-5-nitrobenzoylamino)pyridine 
• 1186193-77-0 N-(6-aminopyridin-3-yl)-2,6-difluoro-3-(propylsulfonamido)benzamide 

Relevant articles and documents

Nitrated coupler compounds useful in direct dyeing and simultaneous oxidation and direct dyeing of keratinic fibers

A cosmetic composition for application to the hair contains either (a) at least one compound having the formula STR1 wherein: R is hydrogen, alkyl or halogen; and R' is hydrogen, alkyl, hydroxyalkyl, carbamylalkyl, mesylaminoalkyl, aminoalkyl, acylaminoalkyl, monoalkylaminoalkyl, dialkylaminoalkyl, piperidinoalkyl, morpholinoalkyl, carbamoyl, acyl or carbalkoxy; or (b) at least one of said compounds having formula I above and at least one benzene or heterocyclic oxidation base. The invention also relates to new couplers of formula I as well as to new indo compounds which result from the coupling of said compounds with an oxidation base. These cosmetic compositions for application to the hair are useful in direct dyeing, oxidation dyeing or simultaneous oxidation and direct dyeing of said hair.