502688-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 502688-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,2,6,8 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 502688-69:
(8*5)+(7*0)+(6*2)+(5*6)+(4*8)+(3*8)+(2*6)+(1*9)=159
159 % 10 = 9
So 502688-69-9 is a valid CAS Registry Number.