74437-22-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74437-22-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,3 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74437-22:
(7*7)+(6*4)+(5*4)+(4*3)+(3*7)+(2*2)+(1*2)=132
132 % 10 = 2
So 74437-22-2 is a valid CAS Registry Number.