72700-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72700-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,0 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 72700-89:
(7*7)+(6*2)+(5*7)+(4*0)+(3*0)+(2*8)+(1*9)=121
121 % 10 = 1
So 72700-89-1 is a valid CAS Registry Number.