128-86-9 Usage
Preparation
C.I. Acid Blue 45 (by (a) 1,5-Dihydroxyanthracene-9,10-dione sulfonation, again nitrifying generated disulfonic Acid, then use Sodium sulfide reduction; (b) using Sodium bisulfite treatment 2,4,6,8-Tetrabromo-1,5-dihydroxyanthracene-9,10-dione or 1,5-Dihydroxy-2,6-dichloro-4,8-dinitroanthraquinone; (C) in the presence of copper with ammonia treatment 2,4,6,8-Tetrabromo-1,5-dihydroxyanthracene-9,10-dione?or?1,5-Dihydroxy-2,6-dichloro-4,8-dinitroanthraquinone?with hydrochloric Acid acidification.
Properties and Applications
blue. Blue powder. In alkaline aqueous solution in have greater solubility. Light resistance, heat resisting fastness are high. Mainly used in high-grade adornment coloring.
Check Digit Verification of cas no
The CAS Registry Mumber 128-86-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,2 and 8 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128-86:
(5*1)+(4*2)+(3*8)+(2*8)+(1*6)=59
59 % 10 = 9
So 128-86-9 is a valid CAS Registry Number.
InChI:InChI=1/C14H10N2O10S2.2Na/c15-3-1-5(27(21,22)23)11(17)9-7(3)13(19)10-8(14(9)20)4(16)2-6(12(10)18)28(24,25)26;;/h1-2,17-18H,15-16H2,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2