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CAS

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830332-02-0

1-acetyl-3-(4-bromophenyl)-5-[3-(2-hydroxyphenyl)pyrazol-4-yl]-2-pyrazoline is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 830332-02-0 Structure

  • Basic information

    1. Product Name: 1-acetyl-3-(4-bromophenyl)-5-[3-(2-hydroxyphenyl)pyrazol-4-yl]-2-pyrazoline
    2. Synonyms: 1-acetyl-3-(4-bromophenyl)-5-[3-(2-hydroxyphenyl)pyrazol-4-yl]-2-pyrazoline
    3. CAS NO:830332-02-0
    4. Molecular Formula:
    5. Molecular Weight: 425.285
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 830332-02-0.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 1-acetyl-3-(4-bromophenyl)-5-[3-(2-hydroxyphenyl)pyrazol-4-yl]-2-pyrazoline(CAS DataBase Reference)
    10. NIST Chemistry Reference: 1-acetyl-3-(4-bromophenyl)-5-[3-(2-hydroxyphenyl)pyrazol-4-yl]-2-pyrazoline(830332-02-0)
    11. EPA Substance Registry System: 1-acetyl-3-(4-bromophenyl)-5-[3-(2-hydroxyphenyl)pyrazol-4-yl]-2-pyrazoline(830332-02-0)

  • 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: 830332-02-0(Hazardous Substances Data)

830332-02-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 830332-02-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,0,3,3 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 830332-02:
(8*8)+(7*3)+(6*0)+(5*3)+(4*3)+(3*2)+(2*0)+(1*2)=120
120 % 10 = 0
So 830332-02-0 is a valid CAS Registry Number.

830332-02-0Upstream product

830332-02-0Downstream Products

830332-02-0Relevant articles and documents

Synthesis of pyrazolyl-2-pyrazolines by treatment of 3-(3-aryl-3- oxopropenyl)chromen-4-ones with hydrazine and their oxidation to bis(pyrazoles)

Levai, Albert,Silva, Artur M. S.,Pinto, Diana C. G. A.,Cavaleiro, Jose A. S.,Alkorta, Ibon,Elguero, Jose,Jekoe, Jozsef

, p. 4672 - 4679 (2004)

The synthesis of several 1-acetyl-3-aryl-5-[3-(2-hydroxyphenyl)pyrazol-4- yl]-2-pyrazolines 3a-3h has been accomplished by treatment of the 3-(3-aryl-3-oxopropenyl)chromen-4-ones 1a-h with hydrazine hydrate in hot acetic acid. The 1-acetyl-3-aryl-5-(3-chromonyl)-2-pyrazolines 2a-2f were also obtained as by-products. Oxidation of the 1-acetyl-4-pyrazolyl-2-pyrazolines 3a-3f with DDQ gave the 3(5)-aryl-5(3)-[3-(2-hydroxyphenyl)pyrazol-4-yl] pyrazoles 5a-5f. The oxidation of the 2-pyrazoline rings was accompanied by N-deacylation. The reaction mechanisms of both transformations are discussed, the first one being supported by experimental results. The structures of all new derivatives were established by NMR and the evidence of prototropic tautomerism is carefully discussed. Theoretical calculations of energies and of the 1H and 13C NMR chemical shifts of the possible tautomeric forms of 5(3)-[3-(2-hydroxyphenyl)pyrazol-4-yl]-3(5)-(4-methoxyphenyl)pyrazole (5c), by B3LYP and GIAO, showed that compounds of this type probably exist as mixtures of two tautomers. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.

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