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?? ??:
2868-75-9
???:
?????10B
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?????10B
???:
BENZOPURPURIN 10B
???(??):
CI 24100;DIRECT RED 7;C.I.Direct Red 7;BENZOPURPURIN 10B;Direct Boardeux-BW;Benzopurpurine 10BS;Benzo Purpurine 10B;Direct red 7 (C.I. 24100);C.I.Direct Red 7:C.I.24100;disodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis(4-aminonaphthalene-1-sulphonate)
CBNumber:
CB4676898
???:
C34H29N6NaO8S2
??? ??:
736.75
MOL ??:
2868-75-9.mol

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3,3′-Dimethoxylbenzidine double nitriding, and 4-Hydroxynaphthalene-1-sulfonic acid (2 Moore) coupled.

Properties and Applications

blue-ray red. Soluble in water for red, also soluble in alcohol for red orange, insoluble in other organic solvents. The strong sulfuric acid for blue, shallow blue for diluted.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 1-2 4 1 2 2
AATCC 1 4 2-3 3 2

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