56621-68-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56621-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,6,2 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 56621-68:
(7*5)+(6*6)+(5*6)+(4*2)+(3*1)+(2*6)+(1*8)=132
132 % 10 = 2
So 56621-68-2 is a valid CAS Registry Number.