1287673-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1287673-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,7,6,7 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1287673-91:
(9*1)+(8*2)+(7*8)+(6*7)+(5*6)+(4*7)+(3*3)+(2*9)+(1*1)=209
209 % 10 = 9
So 1287673-91-9 is a valid CAS Registry Number.