195963-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 195963-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,5,9,6 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 195963-39:
(8*1)+(7*9)+(6*5)+(5*9)+(4*6)+(3*3)+(2*3)+(1*9)=194
194 % 10 = 4
So 195963-39-4 is a valid CAS Registry Number.