Tosufloxacin impurity 5 CAS CATO-C4X-19765
| CAS No. | CATO-C4X-19765 |
| Molecular Formula | C34H21F5N6O6 |
| Molecular Weight | 704.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Tosufloxacin impurity 5 (CAS CATO-C4X-19765), a pharmacopoeial impurity reference standard (molecular formula C34H21F5N6O6, MW 704.56 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Tosufloxacin impurity 5 (C34H21F5N6O6) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Tosufloxacin impurity 5 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C34H21F5N6O6 |
| Molecular Weight | 704.56 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 6 |
Related Tosufloxacin Standards
- Tosufloxacin Impurity 64 (CAS CATO-C4X-19764)
- Tosufloxacin Impurity 3 (CAS CATO-C4X-19763)
- Tosufloxacin impurity 6 (CAS CATO-C4X-19766)
- Tosufloxacin-D4 (CAS CATO-CCAD304671)
- Tosufloxacin Impurity 8 (CAS CATO-C4X-19768)
- Tosufloxacin (CAS 100490-36-6)
- Tosufloxacin Impurity 2 (CAS CATO-C4X-19762)
- Tosufloxacin Impurity 2 (CAS 100491-29-0)
Recommended Standards
- Fosaprepitant Impurity 22 (CAS CATO-C4X-116822)
- (2S)-5,7-Dihydroxy-2-[4-[2,4,6-Trihydroxy-3-[(E)-3-(4-Hydroxyphenyl)Prop-2-Enoyl]-5-[(2S,3R,4R,5S,6R)-3,4,5-Trihydroxy-6-(Hydroxymethyl)Oxan-2-Yl]Phenoxy]Phenyl]Chroman-4-One (CAS 77782-91-3)
- Fosaprepitant Impurity 12 (CAS 2035475-10-4)
- AZD-PEG5-PFP (CAS 1609569-75-6)
- Indocyanine Green Impurity 15 (2,4-Dinitroaniline) (CAS 97-02-9)
- Delamanid Impurity 3 (CAS 1202875-92-0)
- 2-Butyl-4-chloro-1H-imidazole-5-carboxylic acid (CAS 149968-28-5)
- 1-(tert-Butyl)-4-(prop-2-yn-1-yl)piperazine (CAS 91211-39-1)
- N-(2-Chloro-4,6-dimethylphenyl)-2-((5-(4-chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 476486-01-8)
- 154189-40-9 N32934RHGW Sibenadet [INN:BAN] UNII-N32934RHGW Sibenadet 2(3H)-Benzothiazolone, 4-hydroxy-7-(2-((2-((3-(2-phenylethoxy)propyl)sulfonyl)ethyl)amino)ethyl)- 4-Hydroxy-7-(2-((2-((3-(2-phenylethoxy)propyl)sulfonyl)ethyl)amino)ethyl)-1,3-benzothiazol-2(3H)-one (CAS 154189-40-9)
- 2-(2,6-Difluorophenyl)piperidine (CAS 1016716-11-2)
- (2-Methoxyphenyl)glyoxal (CAS 27993-70-0)
- 1-(6-Chloro-4-methylpyridin-3-yl)propan-1-one (CAS 1207260-06-7)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com