Cas 495405-32-8,1H,5H-Pyrazolo[1,2-a]pyrazole-2-carboxylic acid, 6,7-dihydro-5-oxo-1,7-diphenyl-, ethyl ester

495405-32-8

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Basic information

Product Name: 1H,5H-Pyrazolo[1,2-a]pyrazole-2-carboxylic acid, 6,7-dihydro-5-oxo-1,7-diphenyl-, ethyl ester
Synonyms:
CAS NO:495405-32-8
Molecular Formula: C21H20N2O3
Molecular Weight: 348.401
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: 1H,5H-Pyrazolo[1,2-a]pyrazole-2-carboxylic acid, 6,7-dihydro-5-oxo-1,7-diphenyl-, ethyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 1H,5H-Pyrazolo[1,2-a]pyrazole-2-carboxylic acid, 6,7-dihydro-5-oxo-1,7-diphenyl-, ethyl ester(495405-32-8)
EPA Substance Registry System: 1H,5H-Pyrazolo[1,2-a]pyrazole-2-carboxylic acid, 6,7-dihydro-5-oxo-1,7-diphenyl-, ethyl ester(495405-32-8)

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: 495405-32-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 495405-32-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,5,4,0 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 495405-32:
(8*4)+(7*9)+(6*5)+(5*4)+(4*0)+(3*5)+(2*3)+(1*2)=168
168 % 10 = 8
So 495405-32-8 is a valid CAS Registry Number.

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495405-32-8Relevant academic research and scientific papers

Copper(I) acetate-catalyzed cycloaddition between azomethine imines and propiolates under additive-free conditions

Shao, Changwei,Zhang, Qun,Cheng, Guolin,Cheng, Chuanjie,Wang, Xinyan,Hu, Yuefei

, p. 6443 - 6448 (2013/10/21)

Because propiolates easily undergo base-catalyzed self-Michael addition, most popular catalytic systems in CuAAC cannot be used in the cycloaddition between azomethine imines and propiolates, because such reactions usually require the use of tertiary amin

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