682749-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 682749-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,2,7,4 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 682749-71:
(8*6)+(7*8)+(6*2)+(5*7)+(4*4)+(3*9)+(2*7)+(1*1)=209
209 % 10 = 9
So 682749-71-9 is a valid CAS Registry Number.