263712-26-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 263712-26-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,3,7,1 and 2 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 263712-26:
(8*2)+(7*6)+(6*3)+(5*7)+(4*1)+(3*2)+(2*2)+(1*6)=131
131 % 10 = 1
So 263712-26-1 is a valid CAS Registry Number.