927640-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 927640-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,7,6,4 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 927640-21:
(8*9)+(7*2)+(6*7)+(5*6)+(4*4)+(3*0)+(2*2)+(1*1)=179
179 % 10 = 9
So 927640-21-9 is a valid CAS Registry Number.