Cas 87661-09-4,1-(o-nitrophenyl)-3-(2,4-dimethyl-5-ethoxycarbonyl-3-pyrrolyl)-5-oxopyrazole

87661-09-4

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Basic information

Product Name: 1-(o-nitrophenyl)-3-(2,4-dimethyl-5-ethoxycarbonyl-3-pyrrolyl)-5-oxopyrazole
Synonyms: 1-(o-nitrophenyl)-3-(2,4-dimethyl-5-ethoxycarbonyl-3-pyrrolyl)-5-oxopyrazole
CAS NO:87661-09-4
Molecular Formula:
Molecular Weight: 370.365
EINECS: N/A
Product Categories: N/A
Mol File: 87661-09-4.mol
Article Data: 1

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: 1-(o-nitrophenyl)-3-(2,4-dimethyl-5-ethoxycarbonyl-3-pyrrolyl)-5-oxopyrazole(CAS DataBase Reference)
NIST Chemistry Reference: 1-(o-nitrophenyl)-3-(2,4-dimethyl-5-ethoxycarbonyl-3-pyrrolyl)-5-oxopyrazole(87661-09-4)
EPA Substance Registry System: 1-(o-nitrophenyl)-3-(2,4-dimethyl-5-ethoxycarbonyl-3-pyrrolyl)-5-oxopyrazole(87661-09-4)

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: 87661-09-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 87661-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,6 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87661-09:
(7*8)+(6*7)+(5*6)+(4*6)+(3*1)+(2*0)+(1*9)=164
164 % 10 = 4
So 87661-09-4 is a valid CAS Registry Number.

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87661-09-4Relevant articles and documents

SYNTHESIS OF 1-ARYL-3-(3-PYRROLYL)-5-OXOPYRAZOLES

Zhestkov, V.P.,Voronin, V.G.,Portnov, Yu.N.

, p. 863 - 867 (2007/10/02)

1-Aryl-3-(2,4-dimethyl-5-ethoxycarbonyl-3-pyrrolyl)-5-oxopyrazoles were obtained by condensation of ethyl β-(2,4-dimethyl-5-ethoxycarbonyl-3-pyrrolyl)-β-ketopropionate with arylhydrazines.Electron-donor substituents in the aromatic ring of the arylhydrazines accelerate the cyclization of the intermediate hydrazones, whereas electron-acceptor substituents hinder cyclization.

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