Tetracycline impurity 5 CAS CATO-C4X-23315
| CAS No. | CATO-C4X-23315 |
| Molecular Formula | C21H21N3O9 |
| Molecular Weight | 459.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 459.41 g/mol gives Tetracycline impurity 5 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Tetracycline impurity 5 (CAS CATO-C4X-23315), a pharmacopoeial impurity reference standard (molecular formula C21H21N3O9, MW 459.41 g/mol) used for the identification and quantification of trace impurities in APIs.
Tetracycline impurity 5 (C21H21N3O9) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Tetracycline 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 | C21H21N3O9 |
| Molecular Weight | 459.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 90% |
| 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 |
| Nitrogen Atoms | 3 |
Related Tetracycline Standards
- Tetracycline-d6 (CAS CATO-CCHM702732)
- Tetracycline-d6 (CAS 2373374-42-4)
- Tetracycline EP Impurity A (CAS 79-85-6)
- Tetracycline EP Impurity B (CAS 6542-44-5)
- Tetracycline Impurity 8 (CAS CATO-C4X-23318)
- Tetracycline Impurity 9 (CAS CATO-C4X-23319)
- Tetracycline EP Impurity C (CAS 1665-56-1)
- Tetracycline EP Impurity D (CAS 7518-17-4)
Recommended Standards
- N-nitroso-desmethyl-doxycycline (CAS CATO-C4X-193124)
- Cariprazine Impurity 51 (CAS CATO-C4X-240851)
- N-Nitroso-N-desmethyldoxycycline (CAS CATO-C4X-193117)
- Butyl 6-bromo-4-((3aR,7aS)-3a,7a-dimethylhexahydro-1H-isoindol-2(3H)-yl)quinoline-2-carboxylate (CAS 1951439-86-3)
- Umeclidinium Impurity 17 (CAS CATO-C4X-133917)
- Sunitinib Impurity 66 (CAS CATO-C4X-133366)
- Ibuprofen Impurity 104 (CAS CATO-C4X-1082104)
- 2-(1H-Tetrazol-5-yl)benzonitrile (CAS 71515-74-7)
- 4-(chloromethyl)pyrimidine hydrochloride (CAS 135207-28-2)
- 2-Bromo-5-(3,3-difluoropiperidin-1-yl)benzonitrile 1707572-72-2 (CAS 1707572-72-2)
- N-Cyclopentyl-2-[[2-(4-Fluorophenyl)-8-Methyl-4-Quinazolinyl]Thio]-Acetamide (CAS 606134-54-7)
- Ethyl 5-bromo-2-cyano-4-formylbenzoate (CAS 1805104-60-2)
- 5-(aminomethyl)-4-chlorofuran-2-carboxylic acid (CAS 1511770-27-6)
- FLAG Epitope Peptide (CAS 98849-88-8)
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