660822-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 660822-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,0,8,2 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 660822-53:
(8*6)+(7*6)+(6*0)+(5*8)+(4*2)+(3*2)+(2*5)+(1*3)=157
157 % 10 = 7
So 660822-53-7 is a valid CAS Registry Number.