73300-72-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73300-72-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,3,0 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73300-72:
(7*7)+(6*3)+(5*3)+(4*0)+(3*0)+(2*7)+(1*2)=98
98 % 10 = 8
So 73300-72-8 is a valid CAS Registry Number.
73300-72-8Relevant articles and documents
Exploring the chemistry of penicillin as a β-lactamase-dependent prodrug
Ruddle, Carol C.,Smyth, Timothy P.
, p. 160 - 168 (2007)
The penam nucleus can be modified to behave as a β-lactamase-dependent 'prodrug' by incorporation of a vinyl ester side chain at the 6-position. Enzyme-catalysed hydrolysis of the β-lactam ring uncovers the thiazolidine-ring nitrogen as a nucleophile that
