91528-27-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91528-27-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,2 and 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91528-27:
(7*9)+(6*1)+(5*5)+(4*2)+(3*8)+(2*2)+(1*7)=137
137 % 10 = 7
So 91528-27-7 is a valid CAS Registry Number.