191538-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191538-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,5,3 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 191538-05:
(8*1)+(7*9)+(6*1)+(5*5)+(4*3)+(3*8)+(2*0)+(1*5)=143
143 % 10 = 3
So 191538-05-3 is a valid CAS Registry Number.