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Merck
CN

1362103

USP

Levofloxacin

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Levofloxacin hemihydrate

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About This Item

Empirical Formula (Hill Notation):
C18H20FN3O4 · 0.5H2O
CAS Number:
Molecular Weight:
370.38
NACRES:
NA.24
PubChem Substance ID:
UNSPSC Code:
41116107
MDL number:
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grade

pharmaceutical primary standard

API family

levofloxacin

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

O.C[C@H]1COc2c(N3CCN(C)CC3)c(F)cc4C(=O)C(=CN1c24)C(O)=O.C[C@H]5COc6c(N7CCN(C)CC7)c(F)cc8C(=O)C(=CN5c68)C(O)=O

InChI

1S/2C18H20FN3O4.H2O/c2*1-10-9-26-17-14-11(16(23)12(18(24)25)8-22(10)14)7-13(19)15(17)21-5-3-20(2)4-6-21;/h2*7-8,10H,3-6,9H2,1-2H3,(H,24,25);1H2/t2*10-;/m00./s1

InChI key

SUIQUYDRLGGZOL-RCWTXCDDSA-N

Application

Levofloxacin USP Reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Levofloxacin Tablets
  • Levofloxacin Oral Solution

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.


pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Resp. Sens. 1 - Skin Sens. 1

Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable



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Analysis and Standardization of Levofloxacin Substance.
Sedova, M. K., et al.
Pharmaceutical Chemistry Journal, 47.11, 620-626 (2014)
R Davis et al.
Drugs, 47(4), 677-700 (1994-04-01)
Levofloxacin, an oral fluoroquinolone antibacterial agent, is the optical S-(-) isomer of ofloxacin. In vitro it is generally twice as potent as ofloxacin. Levofloxacin is active against most aerobic Gram-positive and Gram-negative organisms and demonstrates moderate activity against anaerobes. Drug
Kyung Eun Han et al.
American journal of ophthalmology, 157(6), 1144-1150 (2014-02-25)
To evaluate dry eye and meibomian gland dysfunction after cataract surgery. Prospective observational case series. We studied 58 eyes of 48 patients who underwent phacoemulsification and evaluated them preoperatively and at 1 month and 3 months postoperatively. Ocular symptom scores



Global Trade Item Number

SKUGTIN
1362103-200MG04061838731210