745809-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 745809-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,5,8,0 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 745809-21:
(8*7)+(7*4)+(6*5)+(5*8)+(4*0)+(3*9)+(2*2)+(1*1)=186
186 % 10 = 6
So 745809-21-6 is a valid CAS Registry Number.