21367-78-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21367-78-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,6 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21367-78:
(7*2)+(6*1)+(5*3)+(4*6)+(3*7)+(2*7)+(1*8)=102
102 % 10 = 2
So 21367-78-2 is a valid CAS Registry Number.