21176-93-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21176-93-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,7 and 6 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21176-93:
(7*2)+(6*1)+(5*1)+(4*7)+(3*6)+(2*9)+(1*3)=92
92 % 10 = 2
So 21176-93-2 is a valid CAS Registry Number.