21268-78-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21268-78-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,6 and 8 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21268-78:
(7*2)+(6*1)+(5*2)+(4*6)+(3*8)+(2*7)+(1*8)=100
100 % 10 = 0
So 21268-78-0 is a valid CAS Registry Number.