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82933-42-4

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82933-42-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82933-42-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,3 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 82933-42:
(7*8)+(6*2)+(5*9)+(4*3)+(3*3)+(2*4)+(1*2)=144
144 % 10 = 4
So 82933-42-4 is a valid CAS Registry Number.

82933-42-4Downstream Products

82933-42-4Relevant articles and documents

Practical synthetic approaches to intermediates for the preparations of the novel O-sulfonated-N-hydroxy-2-azetidinone antibiotics

Miller,Biswas,Krook

, p. 2571 - 2575 (2007/10/02)

A practical synthesis of intermediates useful for the preparation of a variety of monocyclic β-lactam antibiotics is described. Hydroxaminolysis of N-protected serine esters provided the hydroxamic acids 10. Acylation followed by cyclization yielded the β

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