152221-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 152221-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,2,2 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 152221-57:
(8*1)+(7*5)+(6*2)+(5*2)+(4*2)+(3*1)+(2*5)+(1*7)=93
93 % 10 = 3
So 152221-57-3 is a valid CAS Registry Number.