Cas 81976-48-9,{(2R,3S)-2-(2-Acetoxy-acetylsulfanyl)-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-1-yl}-(triphenyl-λ<sup>5</sup>-phosphanylidene)-acetic acid 2-oxo-propyl ester

81976-48-9

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Basic information

Product Name: {(2R,3S)-2-(2-Acetoxy-acetylsulfanyl)-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-1-yl}-(triphenyl-λ⁵-phosphanylidene)-acetic acid 2-oxo-propyl ester
Synonyms: {(2R,3S)-2-(2-Acetoxy-acetylsulfanyl)-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-1-yl}-(triphenyl-λ⁵-phosphanylidene)-acetic acid 2-oxo-propyl ester
CAS NO:81976-48-9
Molecular Formula:
Molecular Weight: 800.78
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: {(2R,3S)-2-(2-Acetoxy-acetylsulfanyl)-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-1-yl}-(triphenyl-λ⁵-phosphanylidene)-acetic acid 2-oxo-propyl ester(CAS DataBase Reference)
NIST Chemistry Reference: {(2R,3S)-2-(2-Acetoxy-acetylsulfanyl)-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-1-yl}-(triphenyl-λ⁵-phosphanylidene)-acetic acid 2-oxo-propyl ester(81976-48-9)
EPA Substance Registry System: {(2R,3S)-2-(2-Acetoxy-acetylsulfanyl)-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-1-yl}-(triphenyl-λ⁵-phosphanylidene)-acetic acid 2-oxo-propyl ester(81976-48-9)

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: 81976-48-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 81976-48-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,7 and 6 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81976-48:
(7*8)+(6*1)+(5*9)+(4*7)+(3*6)+(2*4)+(1*8)=169
169 % 10 = 9
So 81976-48-9 is a valid CAS Registry Number.

81976-48-9Upstream product

81976-48-9Downstream Products

81976-49-0 (5R,6S)-3-Acetoxymethyl-6-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 2-oxo-propyl ester

81976-48-9Relevant academic research and scientific papers

SYNTHESIS OF OPTICALLY ACTIVE 6-HYDROXYETHYL PENEMS

Foglio, Maurizio,Battistini, Carlo,Zarini, Franco,Franceschi, Giovanni

, p. 485 - 488 (2007/10/02)

The synthesis of optically active 6-hydroxyethyl penems introducing the side chain by an aldol condensation on methyl penicillanate S-oxide is described.

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