1824-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1824-55-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,2 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1824-55:
(6*1)+(5*8)+(4*2)+(3*4)+(2*5)+(1*5)=81
81 % 10 = 1
So 1824-55-1 is a valid CAS Registry Number.