Products
- Dehydrothio-p-Toluidine
- Dehydrothio-p-toluidinesulfonic acid
- Dehydrosulfo-p-toluidine double sulfo acid
- Direct Sun-resistant Bright Yellow 5GL( Direct Yellow27 )
- Direct Yellow 6GF(Direct Yellow157)
- Direct Yellow142 (Direct YellowPG)
- Direct Red 80 (Direct Fast Red F3B)
Dyestuff intermediate
Dyes tuff
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Direct Sun-resistant Bright Yellow 5GL( Direct Yellow27 )
Index number: C.I. direct yellow 27(13950)
Molecular weight: 662
Molecular formula: C25H20O9N4S3Na2
Structural formula:
Quality Standard: Apperance: Dark canary uniform powder.
Intensity: 100±3 % of the standard.
Colorful light: Approximate to standard
Yellow powder,lemon yellow in water,soluble in fibre,difficultly soluble in aclohol,orange in benzene or
carbon tetrachloride,not soluble in other organic agents.
Uses:For cotton and hemp glue or dyeness of fibre clothes,or for the dyeness of silk wool terylene and its mixed weave,or for dyeness of leather pulp.
Packing: Net weight 25Kg ,packing in iron bucket.