13977-37-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13977-37-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,9,7 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 13977-37:
(7*1)+(6*3)+(5*9)+(4*7)+(3*7)+(2*3)+(1*7)=132
132 % 10 = 2
So 13977-37-2 is a valid CAS Registry Number.