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181938-42-1

4-hydroxy-1-methyl-3-(2-methylbenzoyl)-2(1H)-quinolinone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 181938-42-1 Structure

  • Basic information

    1. Product Name: 4-hydroxy-1-methyl-3-(2-methylbenzoyl)-2(1H)-quinolinone
    2. Synonyms: 4-hydroxy-1-methyl-3-(2-methylbenzoyl)-2(1H)-quinolinone
    3. CAS NO:181938-42-1
    4. Molecular Formula: C18H15NO3
    5. Molecular Weight: 293.3166
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 181938-42-1.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 4-hydroxy-1-methyl-3-(2-methylbenzoyl)-2(1H)-quinolinone(CAS DataBase Reference)
    10. NIST Chemistry Reference: 4-hydroxy-1-methyl-3-(2-methylbenzoyl)-2(1H)-quinolinone(181938-42-1)
    11. EPA Substance Registry System: 4-hydroxy-1-methyl-3-(2-methylbenzoyl)-2(1H)-quinolinone(181938-42-1)

  • 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: 181938-42-1(Hazardous Substances Data)

181938-42-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181938-42-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,9,3 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 181938-42:
(8*1)+(7*8)+(6*1)+(5*9)+(4*3)+(3*8)+(2*4)+(1*2)=161
161 % 10 = 1
So 181938-42-1 is a valid CAS Registry Number.

181938-42-1Downstream Products

181938-42-1Relevant articles and documents

Synthesis and reactions of 3-aroyl derivatives of 4-hydroxy-2-quinolones and 4-hydroxycoumarin

Kappe, Thomas,Schnell, Barbara

, p. 663 - 670 (2007/10/03)

3-Aroyl-4-hydroxy-2-quinolones 4 and 11 can be synthesized starting with 1 or 9 via Fries rearrangement of the corresponding esters 3 and 10, catalyzed by potassium cyanide and 18-crown-6. A one pot procedure is presented in which the esters do not need to be isolated. Reduction of the aryl ketones 4 and 11 with zinc dust leads to the benzyl derivatives 5 and 12. Reaction of the aryl ketones 4 and 11 with hydroxylamine and subsequent heating of the crude product leads via thermal Beckmann rearrangement and dehydration to oxazoloquinolones 7 and 14. 2-Aroyloxypyrido[1,2-a]pyrimidin-4-ones 17 and 20 could not be converted to the corresponding ketones by Fries rearrangement.

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