207565-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207565-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,5,6 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 207565-51:
(8*2)+(7*0)+(6*7)+(5*5)+(4*6)+(3*5)+(2*5)+(1*1)=133
133 % 10 = 3
So 207565-51-3 is a valid CAS Registry Number.