Roxadustat Impurity 99 CAS CATO-C4X-221399
| CAS No. | CATO-C4X-221399 |
| Molecular Formula | C17H13NO4 |
| Molecular Weight | 295.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Roxadustat Impurity 99 (CAS CATO-C4X-221399), a pharmacopoeial impurity reference standard (molecular formula C17H13NO4, MW 295.29 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C17H13NO4, Roxadustat Impurity 99 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 295.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Roxadustat Impurity 99 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 | C17H13NO4 |
| Molecular Weight | 295.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Roxadustat Standards
- Roxadustat Impurity 64 (CAS 1509958-11-5)
- Roxadustat Impurity 9 (CAS 1421312-35-7)
- Roxadustat Impurity N15 (CAS 1455091-10-7)
- Roxadustat Impurity 131 (CAS CATO-C4X-2213131)
- Roxadustat Impurity N14 (CAS 2243809-28-9)
- Roxadustat Impurity 12 (CAS CATO-C4X-221312)
- Roxadustat Impurity 160 (CAS CATO-C4X-2213160)
- Roxadustat Impurity 164 (CAS CATO-C4X-2213164)
Recommended Standards
- Atogepant Impurity 23 (CAS 1375541-24-4)
- Mebendazole (CAS 31431-39-7)
- Penciclovir Impurity 2 (CAS 97845-80-2)
- 6-Dimethylaminopurine-9-riboside (CAS 2620-62-4)
- Bisoprolol Impurity 89 (CAS 2417155-12-3)
- Latamoxef Impurity 1 (CAS 75007-70-4)
- Esmolol Impurity 88 (CAS CATO-C4X-189188)
- (5r)-2-Chloro-3-methyl-5-phenyl-1,3,2-oxazaphospholidine (CAS 573987-69-6)
- Besudil Impurity 6 (CAS CATO-C4X-29886)
- Levetiracetam Impurity 5 (CAS 358629-51-3)
- 4-((3,4-Difluorobenzyl)oxy)-3-fluorobenzaldehyde (CAS 1443307-49-0)
- (Butan-2-yl)[(2,3-dichlorophenyl)methyl]amine hydrochloride (CAS 1158508-83-8)
- 4-(4-Methoxyphenyl)but-3-yn-2-one (CAS 81532-80-1)
- Peptide Impurity 15 (CAS 1227750-69-7)
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