AURAMINE BASE

PRODUCT IDENTIFICATION
CAS NO. 492-80-8

AURAMINE

EINECS NO. 207-762-5
FORMULA C17H21N3
MOL WT. 267.37
H.S. CODE 3204.19.2595
TOXICITY  
SYNONYMS C.I. Solvent Yellow 34; C.I. Basic Yellow 2 Free Base;
C.I. 41000B; 4,4'-(Imidocarbonyl)bis(N,N-Dimethylaniline); Blauramine; Auramine; Carbonoimidoylbis(N,N-dimethylbenzenamine); Brilliant Oil yellow; Waxoline yellow D; Yellow pyoctanine; 4,4'-Carbonimidoylbis(N,N-dimethylbenzenamine); C.I. 41000B; C.I. Solvent Yellow 34; 4,4'-Dimethylaminobenzophenonimide; Apyonine auramine base; Auramine (free base); Auramine base; Bis(p-dimethylaminophenyl)methyleneimine; Glauramine; Tetramethyl-p-diamino-imido-benzophenone; Other RN: 105913-60-8
SMILES

C(c1ccc(N(C)C)cc1)(c1ccc(N(C)C)cc1)=N

CLASSIFICATION

 

EXTRA NOTES

Overall Carcinogenic Evaluation: Group 2B
EPA Pesticide Chemical Code 039501

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE yellow powder
MELTING POINT 135 C
BOILING POINT 330 C
SPECIFIC GRAVITY  
SOLUBILITY IN WATER 53.5 mg/l
SOLVENT SOLUBILITY

 

AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS Health: 2; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

  
FLASH POINT

 

STABILITY Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking - Solvent dye

Google Scholar Search - Auramine

Drug Information Portal (U.S. National Library of Medicine) - Auramine base

PubChem Compound Summary - Auramine

KEGG (Kyoto Encyclopedia of Genes and Genomes) - Auramine base

http://www.ebi.ac.uk/ - Auramine base

http://www.ncbi.nlm.nih.gov/ - Auramine base

Material Safety Data Sheet

http://toxnet.nlm.nih.gov/
Hazardous Substances Data Bank -  Auramine base

http://monographs.iarc.fr/
Auramine is manufactured industrially from N,N-dimethylaniline and formaldehyde, which react to form Michler¡¯s base (tetramethyldiaminodiphenylmethane). This base is subsequently converted to auramine by heating with sulfur and ammonium chloride in the presence of ammonia. It was reported that a 98% pure auramine contains salts, water and Michler's ketone, an hydrolysis product (Kirsch et al.,1978). Production of auramine took place first in Europe (Switzerland, Germany, the United Kingdom, and France), and later also in the United States of America (USA). Production in these countries has generally been discontinued. Auramine manufacturing is currently mainly located in India and the People¡¯s Republic of China.Auramine colourants are used for dyeing of leather, jute, tanned cotton, and paints, and as dye components in inking ribbons, ballpoint pastes, oils and waxes, and carbon paper. The most important applications are in paper dyeing and flexographic printing (IARC, 2010). More detailed information on the use of auramine dyes and auramine compounds is provided in the recent Monograph

SALES SPECIFICATION

APPEARANCE

 yellow powder

STRENGTH

100.0%

MOISTURE

3.5% max

INSOLUBLES

1.5% max

TRANSPORTATION
PACKING  
HAZARD CLASS

9 (Packing group: III)

UN NO.

3077

SAFETY INFORMATION

HAZARD OVERVIEW

May be harmful if swallowed. Causes serious eye irritation. Suspected of causing cancer. Toxic to aquatic life.

GHS

 

SIGNAL WORD Warning

PICTOGRAMS

HAZARD STATEMENTS

H302-H319-H351-H411

P STATEMENTS

P273-P281-P305 + P351 + P338

EC DIRECTIVES

 

HAZARD CODES

RISK PHRASES

22-36-40-51/53

SAFETY PHRASES

36/37-61