72987-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72987-40-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,8 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 72987-40:
(7*7)+(6*2)+(5*9)+(4*8)+(3*7)+(2*4)+(1*0)=167
167 % 10 = 7
So 72987-40-7 is a valid CAS Registry Number.