4421-21-0 Usage
Preparation
Ethyl 2-cyanoacetate?and 4-((4-Ethoxyphenyl)(methyl)amino)benzaldehyde?condensation.
Properties and Applications
Yellow. Used for the dyeing nylon, good levelness and color fastness to bask in bad resistance.
Standard
Ironing Fastness
Light Fastness
Persperation Fastness
Washing Fastness
Fading
Stain
Fading
Stain
Fading
Stain
ISO
4
4
3-4
4
3-4
Standard
Ironing Fastness
Fading
Stain
Check Digit Verification of cas no
The CAS Registry Mumber 4421-21-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,2 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4421-21:
(6*4)+(5*4)+(4*2)+(3*1)+(2*2)+(1*1)=60
60 % 10 = 0
So 4421-21-0 is a valid CAS Registry Number.
InChI:InChI=1/C21H22N2O3/c1-4-25-20-12-10-19(11-13-20)23(3)18-8-6-16(7-9-18)14-17(15-22)21(24)26-5-2/h6-14H,4-5H2,1-3H3/b17-14+