1221572-27-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1221572-27-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,5,7 and 2 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1221572-27:
(9*1)+(8*2)+(7*2)+(6*1)+(5*5)+(4*7)+(3*2)+(2*2)+(1*7)=115
115 % 10 = 5
So 1221572-27-5 is a valid CAS Registry Number.