100986-89-8
100986-89-8 structure
- Name: Levofloxacin carboxylic acid
- Chemical Name: Levofloxacin Carboxylic Acid
- CAS Number: 100986-89-8
- Molecular Formula: C13H9F2NO4
- Molecular Weight: 281.212
- Catalog: API Synthetic anti-infective drugs Quinolone
- Create Date: 2018-08-02 13:29:59
- Modify Date: 2026-06-30 18:29:42
| Name | Levofloxacin Carboxylic Acid |
|---|---|
| Synonyms |
(S)-(-)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de][1,4]benzoxadine-6-cboxylic Acid
Levofloxacin Related Compound B (35 mg) ((S)-9,10,difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-cboxylic acid) Levofloxacin RC B/ Q Acid Levoxyfluorocboxylic acid (-)-9,10-DIFLUORO-3(S)-METHL-7-OXO-2,3-DIHYDRO-7H-PRYIDO[1,2,3-DE]1,2-BENZOX-AZINE-6-CBOXYLICACID Levofloxacin ImpurityⅡ:LevofloxacinImpurity A{ (3RS)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic Acid} (S)-(-)-9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic acid Levofloxacin Q-acid (Levofloxacin Impurity) LevofloxacinImpurity F Levofloxacin cboxylic acidr Levo Q Acid(oxa-2,3 dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic Acid (S)-9,10,difluro-3-Methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-cboxylic acid Levofloxacin Related CoMpound B IMpC) Levofloxacin Difluoro Cboxylic Acid 9,10-Difluoro-3(S)-methyl-7-oxo-2,3-dihyd Levofloxacin cboxylic acid //BP (S)-9,10-Difluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-cboxylic a 9,10-DIFLUORO-2,3-DIHYDRO-3-(S)-METHYL-7-OXO-7H-PY Levofloxacin Impurity F/ Levofloxacin Related Compound B (Levofloxacin Difluoro Cboxylic Acid) Levofloxacin Cboxylic Acid833 Levofloxacin cboxylic acid (3S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic Acid S-(-)-9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO-[1,2,3-DE] [1,4]-BENZOXAZINE-6-CBOXYLIC ACID 9,10-DIFLUORO-3-(S)-METHYL-7-OXO (3S)-9,10-Difluoro-2,3-dihydro-3-Methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic Acid Levofloxacin RC B Levofloxacin Impurity 3 Levofloxacin Hemihydrate Impurity F 7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylicacid,9,10-difluoro-2,3-dihydro-3-Methyl-7-oxo-,(3S) (-)-9,10-DIFLUORO-3(S)-METHYL-7-OXO-2,3-DIHYDRO-7H- PYRIDO (1,2,3-DE)-1,4-BENZOXAZINE-6-CBOXYLIC ACID Levofloxacin Cboxylic Acid (Levofloxacin Difluoro IMpurity) Levofloxacin Related Compound B ((S)-9,10,difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1 Levefluorocboxylic Acid (3S)-9,10-Difluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid Ofloxacin ImpurityⅠ(Impurity A) oxacin Q-Acid Levofloxacin Impurity C Levofloxacin Q-Acid MFCD04039905 Levofloxacin Impurity H (-)-9,10-DIFLUORO-3(S)-METHYL-7-OXO-2,3-DIHYDRO-7H-PYRIDO (1,2,3-DE)-1,4-BENZOXAZINE-6-CBOXYLIC ACID Levofloxacin Impurity F (Levofloxacin Related Compound B) Antofloxacin impurity 2 LEVOFLUOROCBOXYLIC ACID Levofloxacin Related Compound B (G0M041) Levofloxacin-8 LEVOFLOXACIN ACID //BP S-(-)-9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO-[1,2,3-DE][1,4]-BENZOXAZINE-6-CBOXYLIC ACID Levofloxacin Related Compound B (35 mg) ((S)-9,10,difluro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-cboxylic acid) 8,9-difluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-cboxylic acid Levofloxacin Related Compound B S(-)-9,10-DIFL-2,3-DIHYDRO-3-ME-7H-PYRI& 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-(3S)-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic acid (S)-9,10-difluoro-3-Methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-cboxylic acid LevofloxacinQ-Acid> (S)-()-9,1-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic acid (S)-(-)-9,10-Difluoro-3-Methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-cboxylic acid S-(-)-9,10-DIFLUORO-2,3-DIHYDRO-3-METHYL-7-OXO-7H-PYRIDO-[1 |
| Density | 1.6±0.1 g/cm3 |
|---|---|
| Boiling Point | 459.2±45.0 °C at 760 mmHg |
| Melting Point | >300 °C(lit.) |
| Molecular Formula | C13H9F2NO4 |
| Molecular Weight | 281.212 |
| Flash Point | 231.5±28.7 °C |
| Exact Mass | 281.049957 |
| PSA | 68.53000 |
| LogP | 0.99 |
| Vapour Pressure | 0.0±1.2 mmHg at 25°C |
| Index of Refraction | 1.636 |
| Storage condition | Refrigerator |
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H315-H319-H335 |
| Precautionary Statements | P305 + P351 + P338 |
| Personal Protective Equipment | dust mask type N95 (US);Eyeshields;Gloves |
| Hazard Codes | Xi: Irritant; |
| Risk Phrases | 36/37/38 |
| Safety Phrases | S26-S36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| HS Code | 2934999090 |
| Precursor 7 | |
|---|---|
| DownStream 3 | |
![Ethyl (S)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate structure](https://image.chemsrc.com/caspic/065/106939-34-8.png)
![(-)-ethyl 1,4-dihydro-1-[1(S)-(hydroxymethyl)ethyl]-4-oxo-6,7,8-trifluoroquinoline-3-carboxylate structure](https://image.chemsrc.com/caspic/393/110548-03-3.png)
![(+)-ethyl 2-(2-nitro-3,4,5-trifluorobenzoyl)-3-[(1-acetoxyprop-2(S)-yl)amino]acrylate structure](https://image.chemsrc.com/caspic/397/188058-75-5.png)
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |