1005663-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1005663-97-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,5,6,6 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1005663-97:
(9*1)+(8*0)+(7*0)+(6*5)+(5*6)+(4*6)+(3*3)+(2*9)+(1*7)=127
127 % 10 = 7
So 1005663-97-7 is a valid CAS Registry Number.