37721-43-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 37721-43-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,7,2 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 37721-43:
(7*3)+(6*7)+(5*7)+(4*2)+(3*1)+(2*4)+(1*3)=120
120 % 10 = 0
So 37721-43-0 is a valid CAS Registry Number.