55211-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55211-97-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,2,1 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 55211-97:
(7*5)+(6*5)+(5*2)+(4*1)+(3*1)+(2*9)+(1*7)=107
107 % 10 = 7
So 55211-97-7 is a valid CAS Registry Number.