1010921-25-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1010921-25-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,0,9,2 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1010921-25:
(9*1)+(8*0)+(7*1)+(6*0)+(5*9)+(4*2)+(3*1)+(2*2)+(1*5)=81
81 % 10 = 1
So 1010921-25-1 is a valid CAS Registry Number.