72158-37-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72158-37-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,5 and 8 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72158-37:
(7*7)+(6*2)+(5*1)+(4*5)+(3*8)+(2*3)+(1*7)=123
123 % 10 = 3
So 72158-37-3 is a valid CAS Registry Number.