7745-12-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7745-12-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,4 and 5 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7745-12:
(6*7)+(5*7)+(4*4)+(3*5)+(2*1)+(1*2)=112
112 % 10 = 2
So 7745-12-2 is a valid CAS Registry Number.