744980-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 744980-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,4,9,8 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 744980-83:
(8*7)+(7*4)+(6*4)+(5*9)+(4*8)+(3*0)+(2*8)+(1*3)=204
204 % 10 = 4
So 744980-83-4 is a valid CAS Registry Number.