744191-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 744191-13-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,4,1,9 and 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 744191-13:
(8*7)+(7*4)+(6*4)+(5*1)+(4*9)+(3*1)+(2*1)+(1*3)=157
157 % 10 = 7
So 744191-13-7 is a valid CAS Registry Number.