1212115-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212115-75-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,1,1 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1212115-75:
(9*1)+(8*2)+(7*1)+(6*2)+(5*1)+(4*1)+(3*5)+(2*7)+(1*5)=87
87 % 10 = 7
So 1212115-75-7 is a valid CAS Registry Number.