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(4R,6R,7R)-4-nitrobenzyl 3-methylene-7-phenoxyacetamidocepham-4-carboxylate-1-oxide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

69308-55-0

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69308-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69308-55-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,3,0 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 69308-55:
(7*6)+(6*9)+(5*3)+(4*0)+(3*8)+(2*5)+(1*5)=150
150 % 10 = 0
So 69308-55-0 is a valid CAS Registry Number.

69308-55-0Relevant academic research and scientific papers

Application of lanthanide catalysis in the penicillin to cephalosporin conversion

Barrett, Anthony G.M,Christopher Braddock,Cooper, Robin D.G,Henschke, Julian P

, p. 8313 - 8319 (2002)

seco-Penicillin sulfinyl carboxylates and chlorides were cyclized to produce the corresponding 3-methylenecepham systems, intermediates for cephalosporin antibiotic manufacture, either under thermal or ytterbium(III) triflate catalyzed conditions.

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