89072-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89072-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,0,7 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 89072-21:
(7*8)+(6*9)+(5*0)+(4*7)+(3*2)+(2*2)+(1*1)=149
149 % 10 = 9
So 89072-21-9 is a valid CAS Registry Number.