683239-78-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 683239-78-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,3,2,3 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 683239-78:
(8*6)+(7*8)+(6*3)+(5*2)+(4*3)+(3*9)+(2*7)+(1*8)=193
193 % 10 = 3
So 683239-78-3 is a valid CAS Registry Number.