57535-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57535-18-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,3 and 5 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 57535-18:
(7*5)+(6*7)+(5*5)+(4*3)+(3*5)+(2*1)+(1*8)=139
139 % 10 = 9
So 57535-18-9 is a valid CAS Registry Number.