201278-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201278-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,2,7 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 201278-45:
(8*2)+(7*0)+(6*1)+(5*2)+(4*7)+(3*8)+(2*4)+(1*5)=97
97 % 10 = 7
So 201278-45-7 is a valid CAS Registry Number.