Direct black EX
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- Category :
Dyestuffs and Pigments/Direct Dyes
- CAS NO : 1937-37-7
- EC NO : 217-710-3
- Molecular Formula : C34H27N9O7S2
- Main Specifications : Standard 100%
- Synonyms : C.I. 30235;C.I. Direct Black 38;C.I. Direct Black 38, disodium salt;C.I. Direct Black 38, disodium salt (8CI);Azo black;disodium (3Z)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate;disodium (3E)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate;(3E)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonic acid;
Package: 25kg/bag ,or as the customers'requirement
Uses : used for cotton, viscose printing, natural silk, nylon and blended spinning fabrics dyeing; widely used for leather, wood, plastics and black inks.
Molecular Structure:
Product description:
Direct Black EX ,Direct Black 38
CAS No.:1937-37-7
MF:C34H25N9Na2O7S2
EINECS No.:217-710-3
Deep black color when dyeing for cotton and viscose fiber, which is much better than Direct Black G; it can be also used for cotton, viscose printing, natural silk, nylon and blended spinning fabrics dyeing; widely used for leather, wood, plastics and black inks.
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