Ofloxacin Impurity N1 CAS 82419-34-9
| CAS No. | 82419-34-9 |
| Molecular Formula | C15H13F2NO4 |
| Molecular Weight | 309.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ofloxacin Impurity N1 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Ofloxacin Impurity N1 (CAS 82419-34-9), a pharmacopoeial impurity reference standard (molecular formula C15H13F2NO4, MW 309.26 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Ofloxacin Impurity N1 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 309.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Ofloxacin Impurity N1 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H13F2NO4 |
| Molecular Weight | 309.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Ofloxacin Standards
- Ofloxacin EP Impurity B (CAS 123155-82-8)
- Ofloxacin Impurity 8 (CAS CATO-C4X-17178)
- Ofloxacin EP Impurity A (CAS 110548-07-7)
- Ofloxacin EP Impurity C (CAS 95848-94-5)
- Ofloxacin EP Impurity E (CAS 82419-52-1)
- Ofloxacin Impurity 9 (CAS CATO-C4X-17179)
- Ofloxacin EP Impurity D (CAS 197291-75-1)
- Ofloxacin (CAS 82419-36-1)
Recommended Standards
- 5-Ethyl-1,3-dihydro-1-(2,3,5,6-tetrafluorophenyl)-2H-indol-2-one (CAS 220991-61-7)
- Moxifloxacin Impurity 25 (CAS 143158-55-8)
- 5-((2,6-Dichlorobenzyl)thio)-1,3,4-thiadiazole-2-thiol (CAS 210285-94-2)
- Moxifloxacin Impruty 26 (CAS 452092-31-8)
- Lercanidipine Impurity 47 （Z-Isomer） (CAS CATO-C4X-136447)
- Atenolol impurity 28 (CAS CATO-C4X-154928)
- Relugolix Impurity 181 (CAS CATO-C4X-2429181)
- 3-Bromo-DL-phenylalanine (CAS 30163-20-3)
- 3-(1,3-thiazol-2-yl)-4H-1,2,4-triazole (CAS 1340241-97-5)
- 1,2,5-Trihydroxy-9H-xanthen-9-one (CAS 156640-23-2)
- 3-(Difluoromethyl)-o-xylene (CAS 1214367-23-3)
- 5-(4-Chlorophenyl)-3-hydroxy-4-(4-methylbenzoyl)-1-(thiazol-2-yl)-1H-pyrrol-2(5H)-one (CAS 335418-40-1)
- Benzyl 2-chloro-2-[2-(4-methylphenyl)hydrazono]acetate (CAS 271794-66-2)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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