216240-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216240-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,2,4 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 216240-56:
(8*2)+(7*1)+(6*6)+(5*2)+(4*4)+(3*0)+(2*5)+(1*6)=101
101 % 10 = 1
So 216240-56-1 is a valid CAS Registry Number.