Fast Blue B Base

Product Description

Blue B Base or Ortho-dianisidine base is a chemical compound that is used as a reagent in organic synthesis, particularly in the preparation of azo dyes. It is also used as an intermediate in the manufacturing of other chemicals. The ortho-dianisidine molecule has two isomers, ortho and meta, which have different properties and uses.

Basic Information

CAS No119-90-4
FormulaC14H16N2O2
Molecular Weight244.32
SynonymsBenzidine,3,3′-dimethoxy- (8CI);Fast Blue B Base (6CI);3,3′-Dimethoxy-4,4′-diaminobiphenyl;Dianisidine;FastBlue Base B;3,3′-Dimethoxy-4,4′-diaminodiphenyl;3,3′-Dimethoxybenzidene;3,3′-Dimethoxybenzidine;4,4′-Bi-o-anisidine;4,4′-Diamino-3,3′-dimethoxy-1,1′-biphenyl;Amacel Developed Navy SD;AzogeneFast Blue B;Blue BN Base;Blue Base Irga B;Blue Base NB;Cellitazol B;Cibacete Diazo Navy Blue 2B;Fast Blue DSC Base;Kayaku Blue B Base;Lake Blue B Base;NSC 3168;o-Dianisidine;
EINECS204-355-4
Density1.178 g/cm3
Melting Point137-138 `C(lit.)
Boiling Point391.3 `C at 760 mmHg
Flash Point202.8 `C
Solubilityslightly soluble in water
AppearanceGrey fine crystals
ApplicationDirect Dyes, Pigments

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