• Product NameRobenacoxib
  • CasNo. 220991-32-2
  • MFC16H13 F4 N O2
  • MW327.278
  • Purity
  • Appearance
  • Packing
  • Contact usInquiry

Product Details

CasNo: 220991-32-2

MF: C16H13 F4 N O2

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  • Molecular Formula:C16H13F4NO2
  • Molecular Weight:327.278
  • Vapor Pressure:1.69E-05mmHg at 25°C 
  • Melting Point:152-155°C 
  • Boiling Point:350.1°Cat760mmHg 
  • PKA:4.16±0.10(Predicted) 
  • Flash Point:165.5°C 
  • PSA:49.33000 
  • Density:1.407g/cm3 
  • LogP:4.24910 

Robenacoxib(Cas 220991-32-2) Usage

Definition

ChEBI: An aromatic amino acid that is 2-amino-5-ethylphenylacetic acid in which one of the amino hydrogens is replaced by a 2,3,5,6-tetrafluorophenyl group. A selective cyclooxygenase 2 inhibitor that is used in veterinary medicine for the relief of pain and infl mmation in cats and dogs.

InChI:InChI=1/C16H13F4NO2/c1-2-8-3-4-12(9(5-8)6-13(22)23)21-16-14(19)10(17)7-11(18)15(16)20/h3-5,7,21H,2,6H2,1H3,(H,22,23)

220991-32-2 Relevant articles

Preparation method of robencoxib intermediate

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Paragraph 0064-0066, (2021/04/21)

The invention relates to a preparation m...

Preparation method of robecoxib

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Paragraph 0033; 0040-0043; 0050-0052; 0059-006, (2020/11/02)

The invention relates to a preparation m...

Method for preparing robenacoxib

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Paragraph 0024; 0027-0029; 0032-0034; 0037-0039; 0042-0044, (2019/04/04)

The invention belongs to the technical f...

Method for preparing acid

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Paragraph 0006; 0042-0043, (2019/05/11)

The invention relates to a method for pr...

220991-32-2 Process route

N-(2’3’5’6’-tetrafluorophenyl)-5-ethylindol-2-one
220991-61-7

N-(2’3’5’6’-tetrafluorophenyl)-5-ethylindol-2-one

5-ethyl-2-(2',3',5',6'-tetrafluoroanilino)-phenylacetic acid
220991-32-2

5-ethyl-2-(2',3',5',6'-tetrafluoroanilino)-phenylacetic acid

Conditions
Conditions Yield
With sodium hydroxide; In ethanol; water; at 80 ℃; for 5h; Temperature; Reagent/catalyst; Solvent;
98.7%
With potassium hydroxide; In methanol; water; at 80 ℃; for 5h; Solvent; Reagent/catalyst;
98.3%
N-(2’3’5’6’-tetrafluorophenyl)-5-ethylindol-2-one; With water; sodium hydroxide; In toluene; at 50 ℃; for 0.333333h;
With acetic acid; In water; isopropyl alcohol; at 20 ℃; for 0.5h; pH=4 - 5;
81%
With sodium hydroxide; In methanol; water; toluene;
N-(2’3’5’6’-tetrafluorophenyl)-5-ethylindol-2-one; With sodium hydroxide;
With hydrogenchloride;
C<sub>16</sub>H<sub>9</sub>F<sub>4</sub>NO<sub>2</sub>

C16H9F4NO2

5-ethyl-2-(2',3',5',6'-tetrafluoroanilino)-phenylacetic acid
220991-32-2

5-ethyl-2-(2',3',5',6'-tetrafluoroanilino)-phenylacetic acid

Conditions
Conditions Yield
C16H9F4NO2; With sodium hydroxide; In water; toluene; at 50 ℃; for 0.333333h;
With hydrazine hydrate; In water; toluene; for 0.5h; Reflux;
With potassium hydroxide; for 1.5h; Reflux;
91%

220991-32-2 Upstream products

  • 220991-61-7
    220991-61-7

    N-(2’3’5’6’-tetrafluorophenyl)-5-ethylindol-2-one

  • 769-39-1
    769-39-1

    2,3,5,6-tetraflourophenol

  • 20172-36-5
    20172-36-5

    α-chloro-N-(p-ethylphenyl)acetamide

  • 64483-69-8
    64483-69-8

    5-acetylindolin-2-one

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