15156-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15156-69-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,1,5 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 15156-69:
(7*1)+(6*5)+(5*1)+(4*5)+(3*6)+(2*6)+(1*9)=101
101 % 10 = 1
So 15156-69-1 is a valid CAS Registry Number.