Baloxavir Impurity 21 CAS 1985607-68-8
| CAS No. | 1985607-68-8 |
| Molecular Formula | C22H23N3O6 |
| Molecular Weight | 425.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Baloxavir Impurity 21.
CATO supplies Baloxavir Impurity 21 (CAS 1985607-68-8), a pharmacopoeial impurity reference standard (molecular formula C22H23N3O6, MW 425.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Baloxavir Impurity 21 (C22H23N3O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Baloxavir Impurity 21 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 | C22H23N3O6 |
| Molecular Weight | 425.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 3 |
Related Baloxavir Standards
- Baloxavir Impurity 141 (CAS CATO-C4X-2108141)
- Baloxavir Impurity 22 (CAS 1985607-69-9)
- Baloxavir Impurity 110 (CAS CATO-C4X-2108110)
- Baloxavir Impurity 111 (CAS CATO-C4X-2108111)
- Baloxavir Impurity 6 (CAS CATO-C4X-21086)
- Baloxavir Impurity 129 (CAS CATO-C4X-2108129)
- Baloxavir Impurity 44 (CAS CATO-C4X-210844)
- Baloxavir Impurity 102 (CAS CATO-C4X-2108102)
Recommended Standards
- Lomefloxacin Impurity 21 (CAS CATO-C4X-207321)
- Barloxavir impurity 92 (CAS 2460686-98-8)
- Lomefloxacin Impurity 20 (CAS CATO-C4X-207320)
- Barloxavir impurity 97 (CAS CATO-C4X-210897)
- Cefcapene Impurity 87 (CAS CATO-C4X-182487)
- Ibrutinib Impurity 97 (CAS 2256059-43-3)
- Peramivir Impurity 131 (CAS CATO-C4X-1833131)
- Cefalexin Monohydrate EP Impurity F (CAS CATO-C4X-122442)
- N-(tert-Butoxycarbonyl)-O-(prop-2-yn-1-yl)-L-serine (CAS 145205-94-3)
- 1-(5-(Furan-2-yl)-3-(methylthio)-1H-1,2,4-triazol-1-yl)ethan-1-one (CAS 61323-52-2)
- 3-(piperidin-3-yl)-1H-1,2,4-triazol-5-amine dihydrochloride (CAS 1803595-12-1)
- 7-Phenyl[1,2,4]triazolo[1,5-a]pyrimidin-2-amine (CAS 103906-34-9)
- 4-Bromo-3,5-dimethylisothiazole (CAS 89463-68-3)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
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