93139-44-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93139-44-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,1,3 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 93139-44:
(7*9)+(6*3)+(5*1)+(4*3)+(3*9)+(2*4)+(1*4)=137
137 % 10 = 7
So 93139-44-7 is a valid CAS Registry Number.