CAS 99-55-8 Fast Scarlet Base G Wholesale

It is obtained from o-toluidine as the basic raw material by nitrification after salt formation with sulfuric acid. The product content is more than 98%, the melting point is above 103℃, the average yield is 73.65%. The bright fast scarlet g base is a golden yellow crystal. Melting point is 107 ℃. Insoluble in water, soluble in ethanol, ether, benzene and acetone. Coupling ability is strong, coupling speed is medium.

Technical Information of Fast Scarlet Base G
Density 1.3¯0.1 g/cm3
Boiling Point 329.4¯22.0 ®C at 760 mmHg
Melting Point 103-106 ®C(lit.)
Molecular Formula C7H8N2O2
Molecular Weight 152.151
Flash Point 153.0¯22.3 ®C
Precise Quality 152.058578
PSA 71.84
LogP 1.83
Appearance Characteristics Yellow prismatic crystallization. MP 107 ® C. Soluble in alcohol, ether and acetone, slightly soluble in water.
Vapor Pressure 0.0¯0.7 mmHg at 25®C
Refractive Index 1.616
Applications of Fast Scarlet Base G
01
It is mainly used for dyeing and printing cotton fabrics, dyeing bright red with chromophore AS or AS-D coupling (that is, flag red), and can also be used for dyeing silk, viscose and nylon fabrics.

02
It is also used as an intermediate in organic pigments.

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