1022645-61-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1022645-61-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,2,6,4 and 5 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1022645-61:
(9*1)+(8*0)+(7*2)+(6*2)+(5*6)+(4*4)+(3*5)+(2*6)+(1*1)=109
109 % 10 = 9
So 1022645-61-9 is a valid CAS Registry Number.