71572-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71572-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,7 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71572-20:
(7*7)+(6*1)+(5*5)+(4*7)+(3*2)+(2*2)+(1*0)=118
118 % 10 = 8
So 71572-20-8 is a valid CAS Registry Number.