262603-16-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 262603-16-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,2,6,0 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 262603-16:
(8*2)+(7*6)+(6*2)+(5*6)+(4*0)+(3*3)+(2*1)+(1*6)=117
117 % 10 = 7
So 262603-16-7 is a valid CAS Registry Number.