1263905-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1263905-66-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,3,9,0 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1263905-66:
(9*1)+(8*2)+(7*6)+(6*3)+(5*9)+(4*0)+(3*5)+(2*6)+(1*6)=163
163 % 10 = 3
So 1263905-66-3 is a valid CAS Registry Number.