537688-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 537688-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,3,7,6,8 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 537688-89:
(8*5)+(7*3)+(6*7)+(5*6)+(4*8)+(3*8)+(2*8)+(1*9)=214
214 % 10 = 4
So 537688-89-4 is a valid CAS Registry Number.