21692-36-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21692-36-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,9 and 2 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21692-36:
(7*2)+(6*1)+(5*6)+(4*9)+(3*2)+(2*3)+(1*6)=104
104 % 10 = 4
So 21692-36-4 is a valid CAS Registry Number.