251641-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 251641-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,6,4 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 251641-23:
(8*2)+(7*5)+(6*1)+(5*6)+(4*4)+(3*1)+(2*2)+(1*3)=113
113 % 10 = 3
So 251641-23-3 is a valid CAS Registry Number.