195621-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 195621-65-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,5,6,2 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 195621-65:
(8*1)+(7*9)+(6*5)+(5*6)+(4*2)+(3*1)+(2*6)+(1*5)=159
159 % 10 = 9
So 195621-65-9 is a valid CAS Registry Number.