CI 42500 Chemical Properties

Melting point:

205 °C (dec.)(lit.)

Boiling point:

598.9±50.0 °C(Predicted)

Density 

1.287±0.06 g/cm3(Predicted)

vapor pressure 

0Pa at 25℃

storage temp. 

Refrigerator, under inert atmosphere

solubility 

DMSO (Slightly, Sonicated), Merhanol (Slightly, Sonicated)

pka

14.12±0.29(Predicted)

Colour Index 

42500

form 

Crystalline Powder

color 

purple

Water Solubility 

464mg/L at 25℃

BRN 

2148632

LogP

1.63 at 25℃

CAS DataBase Reference

467-62-9

EPA Substance Registry System

Benzenemethanol, 4-amino-.alpha.,.alpha.-bis(4-aminophenyl)- (467-62-9)

Safety Information

Hazard Codes 

Xn

Risk Statements 

40

Safety Statements 

36/37

WGK Germany 

3

HS Code 

29252900

Hazardous Substances Data

467-62-9(Hazardous Substances Data)

MSDS

• Language:English Provider:ACROS

CI 42500 Usage And Synthesis

Chemical Properties

purple to dark purple crystalline powder

Uses

Pararosaniline Base (cas# 467-62-9) is a useful research chemical. Dyes and metabolites.is used in method for preparing Polyaniline from Polyamino compound and 1,4-Cyclohexanedione derivative.

Flammability and Explosibility

Not classified

Purification Methods

Dissolve the dye in EtOH (1.16g in 30mL), filter and add aqueous NH3 till neutral (colourless) and precipitate it by adding H2O giving 0.8g, m 247o(dec, sintering at 230o). Dissolve it in EtOH, neutralise with NH3 till colourless, add 0.1g of charcoal, filter, and repeat, then add H2O (100mL) to precipitate the colourless carbinol (pseudo-base) and dry it in vacuo, m 257o(dec, also 205o, sintering at 232o). [Weissberger & Theile J Chem Soc 148 1934.] The carbinol is slightly soluble in H2O but is soluble in acids (e.g. HCl to give the coloured chloride [569-61-9]) and EtOH [pK: Goldacre & Phillips J Chem Soc 172 1949]. The perchlorate (dark red with a green shine) has m 300o and explodes at 317o [Dilthey & Diaklage J Prakt Chem [2] 129 1931]. [Beilstein 13 IV 2283.]

CI 42500(467-62-9)Related Product Information

• Basic Red 9
• Acridine
• Semicarbazide
• PARAROSANILINE,PARAROSANILINE HYDROCHLORIDE
• PARAROSANILINE BASE,PARAROSANILINE,PARAROSANILINE FREE BASE (C.I. 42500)
• PARAROSANILINE HYDROCHLORIDE
• ETHYLATED HEXAMETHYL PARAROSANILINE
• PARAROSANILINE ACETATE C.I. NO. 42500,PARAROSANILINE ACETATE,pararosaniline acetate (C.I. 42500)
• PARAROSANILINE HYDROCHLORIDE
• Pararosaniline leuconitrile
• ETHYLATED HEXAMETHYL PARAROSANILINE
• SCHIFF'S REAGENT PARAROSANILINE CHLORIDE
• PARAROSANILINE SOLUTION
• Pararosaniline (Feulgen)
• Pararosaniline hydrochloride hydrate
• Feulgen (Pararosaniline)
• SCHIFF'S REAGENT PARAROSANILINE*CHLORIDE
• PARAROSANILINE SULFATE