ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE

Product Name: ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE
CAS No.: 100491-29-0
Chemical Name: ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE
Synonyms: ETHYL 1-(2;RRR-α-Tocopherolum;Tosufloxacin Impurity;Tosufloxacin Impurity 2;3-B] PYRIDINE-3-CARBOXYLATE;Ethyl 7-chloro-1-(2,4-difluorophenyl);4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2;-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate;ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYR...;ethyl1-(2,4-difluorophenyl)-7-chloro-6-fluoro-4-oxohydropyridino
CBNumber: CB2461449
Molecular Formula: C17H10ClF3N2O3
Formula Weight: 382.72
MOL File: 100491-29-0.mol

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ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE Property

Melting point:: 212-215 °C
Boiling point:: 502.5±50.0 °C(Predicted)
Density: 1.4752 (estimate)
storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
solubility: DMSO (Slightly, Heated), Methanol (Very Slightly, Heated)
form: Solid
pka: -3.23±0.70(Predicted)
color: White to Off-White

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 37/39-26
HS Code: 29339980

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H317May cause an allergic skin reaction

H411Toxic to aquatic life with long lasting effects

Precautionary statements

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

P272Contaminated work clothing should not be allowed out of the workplace.

P273Avoid release to the environment.

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

P302+P352IF ON SKIN: wash with plenty of soap and water.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical

Product number: E1180
Product name: Ethyl 7-Chloro-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate
Purity: >98.0%(HPLC)(N)
Packaging: 5g
Price: $41
Updated: 2025/07/31

TCI Chemical

Product number: E1180
Product name: Ethyl 7-Chloro-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate
Purity: >98.0%(HPLC)(N)
Packaging: 25g
Price: $122
Updated: 2025/07/31

TRC

Product number: C366350
Product name: 7-Chloro-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylicAcidEthylEster
Packaging: 1g
Price: $45
Updated: 2021/12/16

TRC

Product number: C366350
Product name: 7-Chloro-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylicAcidEthylEster
Packaging: 10g
Price: $215
Updated: 2021/12/16

TRC

Product number: C366350
Product name: 7-Chloro-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylicAcidEthylEster
Packaging: 5g
Price: $120
Updated: 2021/12/16

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ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE Chemical Properties,Usage,Production

Chemical Properties

almost white powder

Uses

An intermediate of Trovafloxacin (T893000) and analogs.

Synthesis

105152-47-4

100491-29-0

(1) 250 mg of phosphoryl chloride was slowly added dropwise to 4 mL of N,N-dimethylformamide followed by 200 mg of 2-[2-(2,4-difluorophenylamino)-5-fluoro-6-methoxynicotinoyl]ethyl acetate under cooling conditions in an ice bath and stirred for 10 min keeping the same temperature. Next, ethyl acetate was added to the reaction mixture. The reaction system was warmed up to 50-60°C for 3.5 hours. Upon completion of the reaction, the mixture was poured into 50 mL of ice water and extracted by adding 20 mL of chloroform, the organic layer was separated, washed with 20 mL of water and subsequently dried with anhydrous magnesium sulfate. The solvent was removed by concentration under reduced pressure, 5 mL of ether was added to the residue, and the crystals were collected by filtration to afford 150 mg (72.2% yield) of ethyl 7-chloro-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-diazanaphthalene-3-carboxylate, melting point 217-220 °C. The solvent was concentrated under reduced pressure. Crystals with melting points of 219-221°C were obtained by recrystallization from acetone-methanol solvent mixture (1:1, v/v). Elemental analysis (C17H10N2O3ClF3) Calculated values (%): C, 53.35; H, 2.63; N, 7.32. Measured values (%): C, 53.61; H, 2.47; N, 6.96.

References

[1] Patent: US4704459, 1987, A

ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE Preparation Products And Raw materials

Raw materials

Preparation Products

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ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE Suppliers

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View Lastest Price from ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE manufacturers

Changzhou waston chemical technology Co.,Ltd

Product: ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE 100491-29-0
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: As your request
Release date: 2025-11-03

Moxin Chemicals

Product: Tosufloxacin Impurity 100491-29-0
Price: US $0.00-0.00/mg
Min. Order: 10mg
Purity: 95%+
Supply Ability: 100000
Release date: 2025-03-12

Henan Aochuang Chemical Co.,Ltd.

Product: ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE 100491-29-0
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 1Ton
Release date: 2022-10-13

100491-29-0, ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATERelated Search:

Methyl 4-amino-3-methylbenzoate Methyl 2-bromo-3-methylbenzoate 7-Chloro-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic Acid Ethyl Ester 7-Chloro-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid 1-(2,4-DIFLUOROPHENYL)-6-1LUORO-7-CHLONDE-4-OXO-1,4-DIHYDRO-1,8-NAPTHYRIDINE-3-CARBOXYLIC ACID[TOSUFLOXACIN PHARMACEUTICAL INTERMEDIATE] 2-Chloro-3-fluoropyridine Ethyl 2-acetyl-3-(dimethylamino)acrylate Methyl nicotinoylacetate 5-ACETYL-2-METHYLPYRIDINE 2-Chloro-3-fluoro-5-methylpyridine 3-OXO-3-PYRIDIN-3-YL-PROPIONIC ACID ETHYL ESTER 5-FLUORO-3-METHYL-PYRIDIN-2-YLAMINE 1-(6-CHLOROPYRIDIN-3-YL)PROPAN-1-ONE 7-CHLORO-6-FLUORO-4-OXO-1-PHENYL-1,4-DIHYDRO-[1,8]NAPHTHYRIDINE-3-CARBOXYLIC ACID Ethanone,1-(5-fluoro-3-pyridinyl)- ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE 3-(2-Chloropyrid-5-yl)-propanoic acid 7-CHLORO-6-FLUORO-4-OXO-1-PHENYL-1,4-DIHYDRO-[1,8]NAPHTHYRIDINE-3-CARBOXYLIC ACID ETHYL ESTER

ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE

ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CL-6-F-4-O-HYDROPYRIDINO[2,3-B]PYRIDINE-3-CARBOXYLATE

Ethyl 1-(2,4-difluorophenyl)-7-Cl-6-F-4-O-hydropyridino[2,3-b]pyridine-3-carboxylate,99%

Ethyl 7-chloro-1-(2,4-difluorophenyl)-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate

Ethyl 1-(2,4-difluorophenyl)-7-chloro-6-fluoro-4-oxohydropyridino[2,3-b]pyridine-3-Carboxylate

ethyl1-(2,4-difluorophenyl)-7-chloro-6-fluoro-4-oxohydropyridino[2,3-b]pyridine-3-c

ETHYL 7-CHLORO-1-(2,4-DIFLUOROPHENYL)-6-FLUORO-1,4-DIHYDRO-4-OXONAPHTHYRIDINE-3-CARBOXYLATE

7-Chloro-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid ethyl ester

Ethyl 1-(2,4-difluorophenyl)-7-chloro-6-fluoro-4-oxopyridino[2,3-b]pyridine-3-carboxylate

7-Chloro-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic Acid Ethyl Ester

7-Chloro-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid ethyl ester 95+%

Ethyl 1-(2,4-difluorophenyl)-7-Cl-6-F-4-O-hydropyridino[2,3-b]pyridine-3-carboxylate, 99% 5GR

1,8-Naphthyridine-3-carboxylic acid 7-chloro-1- (2,4- difluorophenyl)-6-fluoro-1,4-dihydro-4-oxo-, ethyl ester

-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate

Ethyl 7-chloro-1-(2,4-difluorophenyl)

1-(2,4-difluorophenyl)-7-chloro-6-fluoro-4 -oxopyridino[2,3-b]pyridine-3-carboxylate

Tosufloxacin Impurity 2

1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE

ethyl1-(2,4-difluorophenyl)-7-chloro-6-fluoro-4-oxohydropyridino

ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE ISO 9001：2015 REACH

ETHYL 1-(2

4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2

3-B] PYRIDINE-3-CARBOXYLATE

ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYR...

100491-29-0 ETHYL 1-(2,4-DIFLUOROPHENYL)-7-CHORO-6-FLUORO-4-OXO-HYDROPYRIDINO[2,3-B] PYRIDINE-3-CARBOXYLATE

Ethyl 7-chloro-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate

7-chloro-1-(2,4-difluorophenyl)-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate

RRR-α-Tocopherolum

Ethyl 7-Chloro-6-fluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate

Tosufloxacin Impurity

100491-29-0

C17H10ClF3N2O3

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