Cas 74743-06-9,2-[(4R,S)-4-acetoxyacetylthio-2-oxo-1-azetidinyl]-2-triphenylphosphoranylideneacetic acid p-nitrobenzyl ester

74743-06-9

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Basic information

Product Name: 2-[(4R,S)-4-acetoxyacetylthio-2-oxo-1-azetidinyl]-2-triphenylphosphoranylideneacetic acid p-nitrobenzyl ester
Synonyms: 2-[(4R,S)-4-acetoxyacetylthio-2-oxo-1-azetidinyl]-2-triphenylphosphoranylideneacetic acid p-nitrobenzyl ester
CAS NO:74743-06-9
Molecular Formula:
Molecular Weight: 656.653
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 2-[(4R,S)-4-acetoxyacetylthio-2-oxo-1-azetidinyl]-2-triphenylphosphoranylideneacetic acid p-nitrobenzyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 2-[(4R,S)-4-acetoxyacetylthio-2-oxo-1-azetidinyl]-2-triphenylphosphoranylideneacetic acid p-nitrobenzyl ester(74743-06-9)
EPA Substance Registry System: 2-[(4R,S)-4-acetoxyacetylthio-2-oxo-1-azetidinyl]-2-triphenylphosphoranylideneacetic acid p-nitrobenzyl ester(74743-06-9)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 74743-06-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 74743-06-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,4 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 74743-06:
(7*7)+(6*4)+(5*7)+(4*4)+(3*3)+(2*0)+(1*6)=139
139 % 10 = 9
So 74743-06-9 is a valid CAS Registry Number.

74743-06-9Upstream product

74743-06-9Downstream Products

74742-68-0 (5R)-p-nitrobenzyl-2-acetoxymethyl-2-penem-3-carboxylate

74743-06-9Relevant academic research and scientific papers

Synthesis of Optically Active (5R)-2-Penem-3-carboxylates from Penicillanic Acid Derivatives: New Potent Anti-bacterial Agents

Foglio, Maurizio,Franceschi, Giovanni,Scarafile, Cosimo,Arcamone, Federico

, p. 70 - 71 (2007/10/02)

A novel synthesis of optically active (5R)-2-penem-3-carboxylates (1a - d) (same configuration as in natural penicillins) starting from the penicillanic acid derivative (3), is described.

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