Tetracycline Impurity 8 CAS CATO-C4X-23318
| CAS No. | CATO-C4X-23318 |
| Molecular Formula | C22H22N2O8 |
| Molecular Weight | 442.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Tetracycline Impurity 8 (C22H22N2O8) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 442.42 g/mol, it falls into the moderately-high-molecular-weight range. 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).
Tetracycline Impurity 8 (CAS CATO-C4X-23318) is a certified pharmaceutical impurity reference standard with the molecular formula C22H22N2O8 and a molecular weight of 442.42 g/mol.
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 8 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 | C22H22N2O8 |
| Molecular Weight | 442.42 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 |
| Nitrogen Atoms | 2 |
Related Tetracycline Standards
- Tetracycline EP Impurity B (CAS 6542-44-5)
- Tetracycline EP Impurity A (CAS 79-85-6)
- Tetracycline-d6 (CAS CATO-CCHM702732)
- Tetracycline-d6 (CAS 2373374-42-4)
- Tetracycline Impurity 9 (CAS CATO-C4X-23319)
- Tetracycline EP Impurity C (CAS 1665-56-1)
- Tetracycline EP Impurity D (CAS 7518-17-4)
- Tetracycline impurity 5 (CAS CATO-C4X-23315)
Recommended Standards
- Oxytetracycline EP impurity F(Anhydrooxytetracycline) (CAS 4660-26-8)
- Finerenone Impurity 183 (CAS CATO-C4X-2880183)
- Oxytetracycline EP Impurity E (CAS 18751-99-0)
- Lemborexant Impurity 102 (CAS CATO-C4X-3042102)
- Everolimus Impurity 21 (CAS 143030-02-8)
- Avatrombopag Impurity 120 (CAS CATO-C4X-2234120)
- Dotinurad Impurity 211 (CAS 70679-89-9)
- 2,6-Difluoro-N-(1H-pyrazol-3-yl)benzamide (CAS 1249343-86-9)
- Tert-butyl (6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydronaphthalen-1-yl)carbamate (CAS 1798794-50-9)
- Tert-butyl 3-((methylthio)methyl)azetidine-1-carboxylate (CAS 1016233-16-1)
- Cyclophosphamide EP Impurity A (CAS 1797009-12-1)
- Lusutrombopag Impurity N7 (CAS 13513-82-1)
- (3-(Piperidin-3-yl)-5-(trifluoromethyl)phenyl)boronic acid (CAS 2225152-66-7)
- C-Peptide (human) (CAS 33017-11-7)
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