Cas 20890-28-2,(4S,4'R)-4,4'-diphenyl-3,3'-spirobi[2-pyrrolidone]

20890-28-2

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Basic information

Product Name: (4S,4'R)-4,4'-diphenyl-3,3'-spirobi[2-pyrrolidone]
Synonyms:
CAS NO:20890-28-2
Molecular Formula:
Molecular Weight: 306.364
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: (4S,4'R)-4,4'-diphenyl-3,3'-spirobi[2-pyrrolidone](CAS DataBase Reference)
NIST Chemistry Reference: (4S,4'R)-4,4'-diphenyl-3,3'-spirobi[2-pyrrolidone](20890-28-2)
EPA Substance Registry System: (4S,4'R)-4,4'-diphenyl-3,3'-spirobi[2-pyrrolidone](20890-28-2)

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: 20890-28-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 20890-28-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,9 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20890-28:
(7*2)+(6*0)+(5*8)+(4*9)+(3*0)+(2*2)+(1*8)=102
102 % 10 = 2
So 20890-28-2 is a valid CAS Registry Number.

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20890-28-2Relevant academic research and scientific papers

Synthesis and structure of aryl(hetaryl)spiropyrrolidones

Berestovitskaya,Litvinov,Vasil'Eva,Nikonorov,Ostroglyadov,Krivolapov

, (2012)

Hydrogenation of the diastereouniform 3-[1-aryl(hetaryl)-2-nitroethyl]-3- methoxycarb-onyl-4-phenyl(3-pyridyl)-2-pyrrolidones is accompanied by intramolecular acylation of the formed amino group to afford the diastereomerically pure 4,4′-aryl(hetaryl)-3,3

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