Impurity reference standards

Ofloxacin impurity standards

This page brings together 14 Ofloxacin related compounds that analytical teams use to identify, quantify and control impurities in the active ingredient and the finished dosage form. The range includes 6 pharmacopoeial impurities and 1 metabolite or hydroxylated analogue.

14reference materials

6pharmacopoeial

1metabolites

Parent API

Ofloxacin

CAS: 82419-36-1
Formula: C₁₈H₂₀FN₃O₄
MW: 361.4 g/mol
Code: ZX-003937

Each lot ships with a certificate of analysis, and characterisation data such as 1H-NMR, mass spectrum and HPLC purity can be shared before you order. Laboratories use them to validate related-substance methods, set specification limits under ICH Q3A and Q3B, and identify unknown peaks in stability samples.

By impurity type

Pharmacopoeial6EP, USP, BP or JP named impurities

Metabolites1Hydroxy, desmethyl and conjugated forms

Counts are based on product names. One compound can fall into more than one type.

All Ofloxacin reference materials

1–14 of 14 standards

(R)-Ofloxacin Carboxylic Acid (Dextrofloxacin Difluoro Impurity)

CAS: 110548-07-7
Formula: C₁₃H₉F₂NO₄
MW: 281.21 g/mol

ZX-030253

(S)-ethyl 3-((1-hydroxypropan-2-yl)amino)-2-(2,3,4-trifluorobenzoyl)acrylate

CAS: 601490-35-1
Formula: C₁₅H₁₆F₃NO₄
MW: 331.29 g/mol

ZX-011862

2-Amino-5,6-difluorophenol

CAS: 115551-33-2
Formula: C₆H₅F₂NO
MW: 145.11 g/mol

ZX-039496

9-Chloro-9-defluoro Ofloxacin

CAS: 82419-45-2
Formula: C₁₈H₂₀ClN₃O₄
MW: 377.8 g/mol

ZX-030255

Ciprofloxacin Hydrochloride

CAS: 86483-48-9
Formula: C₁₇H₁₉ClFN₃O₃
MW: 367.8 g/mol

ZX-046743

Danofloxacin Mesylate

CAS: 119478-55-6
Formula: C₂₀H₂₄FN₃O₆S
MW: 453.5 g/mol

ZX-033264

Ofloxacin

CAS: 82419-36-1
Formula: C₁₈H₂₀FN₃O₄
MW: 361.4 g/mol

ZX-003937

Ofloxacin Dihydrooxazole Impurity

CAS: 2489671-28-3
Formula: C₁₈H₂₀FN₃O₄
MW: 361.4 g/mol

ZX-022339

Ofloxacin EP Impurity A

CAS: 82419-35-0
Formula: C₁₃H₉F₂NO₄
MW: 281.21 g/mol

ZX-005859

Ofloxacin EP Impurity B

CAS: 123155-82-8
Formula: C₁₇H₂₀FN₃O₂
MW: 317.36 g/mol

ZX-022337

Ofloxacin EP Impurity C

CAS: 95848-94-5
Formula: C₁₈H₂₁N₃O₄
MW: 343.4 g/mol

ZX-005860

Ofloxacin EP Impurity D

CAS: 197291-75-1
Formula: C₁₈H₂₀FN₃O₄
MW: 361.4 g/mol

ZX-022338

Ofloxacin EP impurity E

CAS: 82419-52-1
Formula: C₁₇H₁₈FN₃O₄
MW: 347.34 g/mol

ZX-025905

Ofloxacin EP Impurity F

CAS: 104721-52-0
Formula: C₁₈H₂₀FN₃O₅
MW: 377.4 g/mol

ZX-022336

Questions

Ofloxacin impurities, answered

What Ofloxacin reference materials are available?

The catalogue currently lists 14 compounds for Ofloxacin, including 6 pharmacopoeial impurities and 1 metabolite or hydroxylated analogue. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.

What documents come with a Ofloxacin impurity standard?

A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.

Can Zemixal make a Ofloxacin impurity that is not listed?

Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.