1694973-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1694973-73-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,9,4,9,7 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1694973-73:
(9*1)+(8*6)+(7*9)+(6*4)+(5*9)+(4*7)+(3*3)+(2*7)+(1*3)=243
243 % 10 = 3
So 1694973-73-3 is a valid CAS Registry Number.