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(2S,5R,6S)-6-Bromo-6-(1-hydroxy-ethyl)-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

76431-32-8

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76431-32-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 76431-32-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,4,3 and 1 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 76431-32:
(7*7)+(6*6)+(5*4)+(4*3)+(3*1)+(2*3)+(1*2)=128
128 % 10 = 8
So 76431-32-8 is a valid CAS Registry Number.

76431-32-8Relevant academic research and scientific papers

STEREOSELECTIVITY IN 6-HALOPENICILLANATE GRIGNARD REACTIONS

Brown, Bradley B.,Volkmann, Robert A.

, p. 1545 - 1548 (2007/10/02)

Structural modifications of 6-halopenicillanate Grignards result in increased "aldol" stereoselectivity.The intermediacy of tetrahedral penicillin carbanions in THF and β-lactam enolates in CH2Cl2/toluene is proposed.

SYNTHESIS OF OPTICALLY ACTIVE PENEMS

Girijavallabhan, V. M.,Ganguly, A. K.,McCombie, S. W.,Pinto, P.,Rizvi, R.

, p. 3485 - 3488 (2007/10/02)

A general synthesis for optically active penems is described.Penems undergo a novel thermal isomerisation reaction.

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