394693-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 394693-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,4,6,9 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 394693-87:
(8*3)+(7*9)+(6*4)+(5*6)+(4*9)+(3*3)+(2*8)+(1*7)=209
209 % 10 = 9
So 394693-87-9 is a valid CAS Registry Number.