93721-36-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93721-36-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,7,2 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 93721-36:
(7*9)+(6*3)+(5*7)+(4*2)+(3*1)+(2*3)+(1*6)=139
139 % 10 = 9
So 93721-36-9 is a valid CAS Registry Number.