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16724-05-3

pyromellitic acid dianilide para-isomer is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 16724-05-3 Structure

  • Basic information

    1. Product Name: pyromellitic acid dianilide para-isomer
    2. Synonyms: pyromellitic acid dianilide para-isomer
    3. CAS NO:16724-05-3
    4. Molecular Formula:
    5. Molecular Weight: 404.379
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 16724-05-3.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: pyromellitic acid dianilide para-isomer(CAS DataBase Reference)
    10. NIST Chemistry Reference: pyromellitic acid dianilide para-isomer(16724-05-3)
    11. EPA Substance Registry System: pyromellitic acid dianilide para-isomer(16724-05-3)

  • 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: 16724-05-3(Hazardous Substances Data)

16724-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16724-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,7,2 and 4 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 16724-05:
(7*1)+(6*6)+(5*7)+(4*2)+(3*4)+(2*0)+(1*5)=103
103 % 10 = 3
So 16724-05-3 is a valid CAS Registry Number.

16724-05-3Relevant articles and documents

METHOD FOR PRODUCING CARBOXYLIC ANHYDRIDE AND ARYLBORONIC ACID COMPOUND

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Page/Page column 13, (2012/01/13)

When phthalic acid is heated in heptane under azeotropic reflux conditions in the presence of a catalytic amount of an arylboronic acid compound (such as 2,6-(diisopropylaminomethyl)phenylboronic acid or 2,6-bis(diisopropylaminomethyl)phenylboronic acid), phthalic anhydride is obtained in high yield.

Bronsted base-assisted boronic acid catalysis for the dehydrative intramolecular condensation of dicarboxylic acids

Sakakura, Akira,Ohkubo, Takuro,Yamashita, Risa,Akakura, Matsujiro,Ishihara, Kazuaki

supporting information; experimental part, p. 892 - 895 (2011/05/02)

Bronsted base-assisted boronic acid catalysis for the dehydrative self-condensation of carboxylic acids is described. Arylboronic acid bearing bulky (N,N-dialkylamino)methyl groups at the 2,6-positions can catalyze the intramolecular dehydrative condensation of di-and tetracarboxylic acids. This is the first successful method for the catalytic dehydrative self-condensation of carboxylic acids.(Figure Presented)

ISOMERISM IN COMPLEXES OF PYROMELLITIC ACID DIANILIDE WITH APROTIC POLAR SOLVENTS

Denisov, V. M.,Shibaev, L. A.,Dauengauer, S. A.,Sazanov, Yu. N.,Kol'tsov, A. I.

, p. 1141 - 1145 (2007/10/02)

A study has been carried out of isomerism in complexes of pyromellitic acid dianilide with aprotic polar solvents, and crystalline complexes have been isolated which contain only the paraisomer of the original acid.It has been shown to be possible to convert one isomeric complex into another in solution at moderate temperatures.

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