33558-27-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33558-27-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,5,5 and 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 33558-27:
(7*3)+(6*3)+(5*5)+(4*5)+(3*8)+(2*2)+(1*7)=119
119 % 10 = 9
So 33558-27-9 is a valid CAS Registry Number.