39887-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39887-69-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,8,8 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 39887-69:
(7*3)+(6*9)+(5*8)+(4*8)+(3*7)+(2*6)+(1*9)=189
189 % 10 = 9
So 39887-69-9 is a valid CAS Registry Number.