6408-82-8 Usage
Preparation
2-Aminobenzoic acid diazotization, and 4-Hydroxynaphthalene-1-sulfonic acid coupling.
Properties and Applications
red light purple. Soluble in water for red, solubility is 50 g/l (80 ℃), slightly soluble in alcohol, not soluble in acetone. In concentrated sulfuric acid to dark red light purple; In concentrated nitric acid to pink; In concentrated hydrochloric acid for brilliant red light wheat color. Mainly used for dyeing wool, dyeing scattered hair, tops and roughers, generally not used for printing.
Standard
Ironing Fastness
Light Fastness
Fulling
Persperation Fastness
Soaping
Water
Alkali
Acid
ISO
6
4
4-5
5
5
Standard
Ironing Fastness
Alkali
Acid
Check Digit Verification of cas no
The CAS Registry Mumber 6408-82-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,0 and 8 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6408-82:
(6*6)+(5*4)+(4*0)+(3*8)+(2*8)+(1*2)=98
98 % 10 = 8
So 6408-82-8 is a valid CAS Registry Number.
InChI:InChI=1/C17H12N2O6S.2Na/c20-16-11-6-2-1-5-10(11)15(26(23,24)25)9-14(16)19-18-13-8-4-3-7-12(13)17(21)22;;/h1-9,18H,(H,21,22)(H,23,24,25);;/q;2*+1/p-2/b19-14-;;
