537665-69-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 537665-69-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,3,7,6,6 and 5 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 537665-69:
(8*5)+(7*3)+(6*7)+(5*6)+(4*6)+(3*5)+(2*6)+(1*9)=193
193 % 10 = 3
So 537665-69-3 is a valid CAS Registry Number.