1681-60-3 Usage
Preparation
(a) 4-Nitrobenzenamine diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?coupling (C.I.Acid Red 176, C.I. 16575), then will the nitro reduction; (b) N-(4-aminophenyl)acetamide?diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acidcoupling (C.I.Acid Violet 6, C.I.16600), then acetyl hydrolysis.
Properties and Applications
blue purple. Soluble in water for blue purple, hardly soluble in ethanol and soluble fiber element. The strong sulfuric acid for blue-ray in red, for wine red after diluted. In nitric acid solution for wine red, in strong hydrochloric acid for chestnut solution; In 10% of sodium hydroxide solution for chestnut solution. In water solution to join hydrochloric acid for red; Join gas oxidation sodium for red orange brown.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
2
2-3
4
2-3
2
5
1
AATCC
4
2-3
2-3
1
3
3
3
3
Standard
Light Fastness
Fading
Stain
ISO
2
AATCC
4
Check Digit Verification of cas no
The CAS Registry Mumber 1681-60-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,8 and 1 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1681-60:
(6*1)+(5*6)+(4*8)+(3*1)+(2*6)+(1*0)=83
83 % 10 = 3
So 1681-60-3 is a valid CAS Registry Number.
InChI:InChI=1/C16H13N3O8S2.2Na/c17-9-1-3-10(4-2-9)18-19-15-13(29(25,26)27)6-8-5-11(28(22,23)24)7-12(20)14(8)16(15)21;;/h1-7,18,20H,17H2,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2/b19-15-;;
