21395-42-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21395-42-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,9 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21395-42:
(7*2)+(6*1)+(5*3)+(4*9)+(3*5)+(2*4)+(1*2)=96
96 % 10 = 6
So 21395-42-6 is a valid CAS Registry Number.