74476-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74476-20-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,7 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74476-20:
(7*7)+(6*4)+(5*4)+(4*7)+(3*6)+(2*2)+(1*0)=143
143 % 10 = 3
So 74476-20-3 is a valid CAS Registry Number.