Cas 81752-49-0,p-nitrobenzyl 3-methyl-2<(2R)-2-methylsulphonyl-4-oxoazetidin-1-yl>but-2-enoate

81752-49-0

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Basic information

Product Name: p-nitrobenzyl 3-methyl-2<(2R)-2-methylsulphonyl-4-oxoazetidin-1-yl>but-2-enoate
Synonyms:
CAS NO:81752-49-0
Molecular Formula:
Molecular Weight: 382.394
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: p-nitrobenzyl 3-methyl-2<(2R)-2-methylsulphonyl-4-oxoazetidin-1-yl>but-2-enoate(CAS DataBase Reference)
NIST Chemistry Reference: p-nitrobenzyl 3-methyl-2<(2R)-2-methylsulphonyl-4-oxoazetidin-1-yl>but-2-enoate(81752-49-0)
EPA Substance Registry System: p-nitrobenzyl 3-methyl-2<(2R)-2-methylsulphonyl-4-oxoazetidin-1-yl>but-2-enoate(81752-49-0)

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: 81752-49-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 81752-49-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,5 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81752-49:
(7*8)+(6*1)+(5*7)+(4*5)+(3*2)+(2*4)+(1*9)=140
140 % 10 = 0
So 81752-49-0 is a valid CAS Registry Number.

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81752-49-0Relevant academic research and scientific papers

Studies Related to Penicillins. Part 21. β-Elimination Reactions of S,S-Dioxides of Penicillanic Esters

Pant, Chandra M.,Steele, John,Stoodley, Richard J.

, p. 595 - 602 (2007/10/02)

In the presence of 1,5-diazabicyclonon-5-ene (DBN), methyl benzylpenicillinate 1,1-dioxide (3a) is converted into (2S,3R)-1-(1-methoxycarbonyl-2-methylprop-1-enyl)-4-oxo-3-phenylacetamidoazetidine-2-sulphinic acid (5a).Corresponding reactions are o

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