634907-73-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 634907-73-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,4,9,0 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 634907-73:
(8*6)+(7*3)+(6*4)+(5*9)+(4*0)+(3*7)+(2*7)+(1*3)=176
176 % 10 = 6
So 634907-73-6 is a valid CAS Registry Number.