745814-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 745814-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,5,8,1 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 745814-57:
(8*7)+(7*4)+(6*5)+(5*8)+(4*1)+(3*4)+(2*5)+(1*7)=187
187 % 10 = 7
So 745814-57-7 is a valid CAS Registry Number.