103731-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103731-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,7,3 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 103731-99:
(8*1)+(7*0)+(6*3)+(5*7)+(4*3)+(3*1)+(2*9)+(1*9)=103
103 % 10 = 3
So 103731-99-3 is a valid CAS Registry Number.