3176-79-2 Usage
Preparation
2-Methyl-4-(o-tolyldiazenyl)benzenamine diazotization, and Naphthalen-2-ol coupling.
Properties and Applications
red. Red powder. Insoluble in water, soluble in ethanol, acetone and so on the many kinds of solvent, resistance to 5% of hydrochloric acid and sodium carbonate. In concentrated sulfuric acid to blue light green, dilution after red precipitation; In 10% of the sulfuric acid insoluble; In concentrated sodium hydroxide solution insoluble; In concentrated nitric acid for brown solution; In 10% sodium hydroxide solution insoluble.
Standard
Light Fastness
Heat-resistant(℃)
water
Sodium Carbonate(5%)
Hydrochloric acid(5%)
Melting point
Stable
ISO
Good
150
Insoluble
General
Good
Standard
Light Fastness
Melting point
Stable
ISO
Good
Check Digit Verification of cas no
The CAS Registry Mumber 3176-79-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,1,7 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3176-79:
(6*3)+(5*1)+(4*7)+(3*6)+(2*7)+(1*9)=92
92 % 10 = 2
So 3176-79-2 is a valid CAS Registry Number.
InChI:InChI=1/C24H20N4O/c1-16-6-5-8-19(14-16)25-27-22-12-11-20(15-17(22)2)26-28-24-21-9-4-3-7-18(21)10-13-23(24)29/h3-15,26H,1-2H3/b27-25+,28-24+
