321553-27-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 321553-27-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,5,5 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 321553-27:
(8*3)+(7*2)+(6*1)+(5*5)+(4*5)+(3*3)+(2*2)+(1*7)=109
109 % 10 = 9
So 321553-27-9 is a valid CAS Registry Number.