13902-63-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13902-63-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,9,0 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13902-63:
(7*1)+(6*3)+(5*9)+(4*0)+(3*2)+(2*6)+(1*3)=91
91 % 10 = 1
So 13902-63-1 is a valid CAS Registry Number.