93542-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93542-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,5,4 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 93542-19:
(7*9)+(6*3)+(5*5)+(4*4)+(3*2)+(2*1)+(1*9)=139
139 % 10 = 9
So 93542-19-9 is a valid CAS Registry Number.