21119-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21119-23-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,1 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21119-23:
(7*2)+(6*1)+(5*1)+(4*1)+(3*9)+(2*2)+(1*3)=63
63 % 10 = 3
So 21119-23-3 is a valid CAS Registry Number.