220758-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220758-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,7,5 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 220758-99:
(8*2)+(7*2)+(6*0)+(5*7)+(4*5)+(3*8)+(2*9)+(1*9)=136
136 % 10 = 6
So 220758-99-6 is a valid CAS Registry Number.