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124083-43-8

5-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 124083-43-8 Structure

  • Basic information

    1. Product Name: 5-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one
    2. Synonyms:
    3. CAS NO:124083-43-8
    4. Molecular Formula: C10H10N2O2
    5. Molecular Weight: 190.1986
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 124083-43-8.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 461°C at 760 mmHg
    3. Flash Point: 232.6°C
    4. Appearance: N/A
    5. Density: 1.213g/cm3
    6. Vapor Pressure: 4.03E-09mmHg at 25°C
    7. Refractive Index: 1.569
    8. Storage Temp.: N/A
    9. Solubility: N/A
    10. CAS DataBase Reference: 5-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one(CAS DataBase Reference)
    11. NIST Chemistry Reference: 5-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one(124083-43-8)
    12. EPA Substance Registry System: 5-(4-methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one(124083-43-8)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 124083-43-8(Hazardous Substances Data)

124083-43-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124083-43-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,0,8 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 124083-43:
(8*1)+(7*2)+(6*4)+(5*0)+(4*8)+(3*3)+(2*4)+(1*3)=98
98 % 10 = 8
So 124083-43-8 is a valid CAS Registry Number.

124083-43-8Relevant articles and documents

Synthesis of 3-substituted and 3,4-disubstituted pyrazolin-5-ones

Jung, Jae-Chul,Watkins, E.Blake,Avery, Mitchell A

, p. 3639 - 3646 (2007/10/03)

The synthesis of 3-substituted and 3,4-disubstituted pyrazolin-5-ones from acylated ethyl acetoacetates and diethyl malonates is described. The reaction of acylated ethyl acetoacetates and diethyl acetylmalonate with hydrazine (98%) gave 3-substituted pyrazolin-5-ones and malonyldihydrazide, respectively, following a deacetylation-condensation sequence. The reaction of ethyl 2-acetyl-3-hydroxy-2-butenoate and diethyl 2-(1-hydroxyethylidene)malonate with hydrazine monohydrochloride yielded ethyl 3,5-dimethyl-1H-pyrazole-4-carboxylate and 4-ethoxycarbonyl-3-methylpyrazolin-5-one, respectively, following a dehydration-cyclocondensation sequence, in high yields.

STUDIES IN THE AZOLE SERIES. CIII. ADAMANTYL AND HALOGENO PYRAZOLIN-5-ONES

Cabildo, Pilar,Claramunt, Rosa M.,Elguero, Jose,Foces-Foces, Concepcion,Llamas-Saiz, Antonio L.,Cano, Felix H.

, p. 735 - 748 (2007/10/02)

Nine new pyrazolinones are described together with the crystal structure of one of them, namely 3-(4-chloropyrazol-1-yl)-4,4-dichloro-2-pyrazolin-5-one, 8, which has been solved by X-ray crystallography.The molecule is planar since it lies on a mirror plane and packs first in chains through hydrogen bonds, then in sheets through strong Cl...O interactions.An NMR study in the solid state and in solution proves that the major tautomer is the 3-pyrazolin-5-one c.

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