1004553-86-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1004553-86-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,4,5,5 and 3 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1004553-86:
(9*1)+(8*0)+(7*0)+(6*4)+(5*5)+(4*5)+(3*3)+(2*8)+(1*6)=109
109 % 10 = 9
So 1004553-86-9 is a valid CAS Registry Number.