13887-54-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13887-54-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,8,8 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 13887-54:
(7*1)+(6*3)+(5*8)+(4*8)+(3*7)+(2*5)+(1*4)=132
132 % 10 = 2
So 13887-54-2 is a valid CAS Registry Number.