ChemicalBook > CAS DataBase List > 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid

Product Name
1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid
CAS No.
154093-72-8
Chemical Name
1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid
Synonyms
Gatifloxacin USP RC B;Mosisasin Impurity E2;Moxifloxacin Impurity 23;1-cyclopropyl-6,7-difluoro;Gatifloxacin USP IMpurity B;Difluorohydroxy gatifloxacin;Gatifloxacin hydroxy acid impurity;Moxifloxacin Difluoro Hydroxy Impurity;Moxifloxacin hydroxyquinoline impurities;Moxifloxacin Difluoro Hydroxy Acid Impurity
CBNumber
CB22543062
Molecular Formula
C13H9F2NO4
Formula Weight
281.21
MOL File
154093-72-8.mol
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1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid Property

Melting point:
>271oC (dec.)
Boiling point:
478.3±45.0 °C(Predicted)
Density 
1.745±0.06 g/cm3(Predicted)
storage temp. 
Sealed in dry,Room Temperature
solubility 
DMSO (Slightly), Methanol (Slightly, Heated)
pka
5.75±0.20(Predicted)
form 
Solid
color 
White to Pale Beige
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TRC
Product number
C988638
Product name
1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylicAcid
Packaging
250mg
Price
$175
Updated
2021/12/16
AK Scientific
Product number
9850CS
Product name
1-Cyclopropyl-6,7-difluoro-8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylicacid
Packaging
250mg
Price
$84
Updated
2021/12/16
AK Scientific
Product number
9850CS
Product name
1-Cyclopropyl-6,7-difluoro-8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylicacid
Packaging
10g
Price
$492
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
HCH0362320
Product name
1-CYCLOPROPYL-6,7-DIFLUORO-8-HYDROXY-4-OXO-1,4-DIHYDROQUINOLINE-3-CARBOXYLIC ACID
Purity
95.00%
Packaging
5MG
Price
$500.8
Updated
2021/12/16
Ambeed
Product number
A143732
Product name
1-Cyclopropyl-6,7-difluoro-8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylicacid
Purity
97%
Packaging
100mg
Price
$20
Updated
2021/12/16
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1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid Chemical Properties,Usage,Production

Uses

Moxifloxacin (M745000) impurity.

Synthesis

112811-72-0

154093-72-8

About 500 mL of DMSO filtrate from the nucleophilic substitution reaction was transferred to a 1000 mL reactor and anhydrous calcium chloride (about 33 g) was added under stirring conditions. The reaction mixture was cooled with stirring to 0-5 °C and maintained in this temperature range for 30 minutes. Subsequently, the pH was adjusted to 4 with a 15% aqueous hydrochloric acid solution, the temperature was maintained between 0-5°C, and stirring was continued for 3 hours. Upon completion of the reaction, the precipitated product was collected by filtration, washed well with acetone and then dried. A dry 1-cyclopropyl-6,7-difluoro-8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (about 35 g) with a purity of more than 90% was finally obtained.

References

[1] Patent: WO2006/4561, 2006, A1. Location in patent: Page/Page column title page; 4; 12-13
[2] Patent: WO2008/62379, 2008, A2. Location in patent: Page/Page column 37
[3] Patent: US2010/222302, 2010, A1. Location in patent: Page/Page column 21
[4] Patent: WO2007/17828, 2007, A2. Location in patent: Page/Page column 54

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid Preparation Products And Raw materials

Raw materials

Preparation Products

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1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid Suppliers

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154093-72-8, 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic AcidRelated Search:

GATIFLOXACIN RELATED COMPOUND A 8-Fluoro-6-methoxy Moxifloxacin Dihydrochloride Moxifloxacin Impurity 30 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid 1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic acid ethyl ester 3-Quinolinecarboxylic acid, 7-aMino-1-cyclopropyl-6-fluoro-1,4-dihydro-8-Methoxy-4-oxo- 1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(4aR,7aR)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid Moxifloxacin Decarboxy Analog 1-Cyclopropyl-7-8-difluoro-6-Methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid Ethyl Ester Moxifloxacin Ethyl Ester ethyl 1-cyclopropyl-8-ethoxy-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate 1-cyclopropyl-8-ethoxy-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 1-Cyclopropyl-8-ethoxy-6-fluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid 3-Quinolinecarboxylic acid, 1-cyclopropyl-6,8-difluoro-1,4-dihydro-7-(octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl)-4-oxo-, (4aS-cis)- 1-Cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxoq Methyl 1-cyclopropyl-6-fluoro-7-(hexahydro-1H-pyrrolo [3, 4-b]pyridin-6(2H)-yl)-8-Methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylate N-Methyl Moxifloxacin 1-Cyclopropyl-6-fluoro-1,4-dihydro-8-hydroxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid

  • 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinolinecarboxylic Acid
  • Gatifloxacin USP IMpurity B
  • 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-quinolin-3-carboxylic acid
  • Moxifloxacin Impurity 23
  • 1-cyclopropyl-6,7-difluoro-8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
  • Moxifloxacin impurity 18/Moxifloxacin Hydroxy Quinoline Impurity/1-Cyclopropyl-6,7-difluoro-8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
  • 1-cyclopropyl-6,7-difluoro
  • Mosisasin Impurity E2
  • Gatifloxacin USP RC B
  • Moxifloxacin Difluoro Hydroxy Acid Impurity
  • Moxifloxacin Difluoro Hydroxy Impurity
  • Moxifloxacin hydroxyquinoline impurities
  • 3-Quinolinecarboxylic acid, 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-
  • Difluorohydroxy gatifloxacin
  • Gatifloxacin Related Compound B/Moxifloxacin Difluoro Hydroxy Acid Impurity
  • Moxifloxacin Difluoro Hydroxy Acid Impurity (Gatifloxacin Related Compound B)
  • Gatifloxacin hydroxy acid impurity
  • 1-cyclopropyl-6,7-difluoro-8-hydroxy-4-oxoquinoline-3-carboxylic acid
  • Gatifloxacin Impurity: 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy- 4-oxo-3-quinolinecarboxylic acid
  • 154093-72-8
  • Amines
  • Heterocycles
  • Intermediate
  • Intermediates & Fine Chemicals
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