Chlortetracycline Hydrochloride EP Impurity K CAS CATO-C4X-233021
| CAS No. | CATO-C4X-233021 |
| Molecular Formula | C22H21ClN2O7 |
| Molecular Weight | 460.86 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 460.86 g/mol gives Chlortetracycline Hydrochloride EP Impurity K distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Chlortetracycline Hydrochloride EP Impurity K (CAS CATO-C4X-233021, C22H21ClN2O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Chlortetracycline Hydrochloride EP Impurity K is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 460.86 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 Chlortetracycline Hydrochloride EP Impurity K 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 | C22H21ClN2O7 |
| Molecular Weight | 460.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chlortetracycline Standards
- Chlortetracycline Hydrochloride EP Impurity L (CAS CATO-C4X-233022)
- Chlortetracycline Impurity 24 (CAS CATO-C4X-233024)
- Chlortetracycline EP Impurity H (CAS 7301-38-4)
- Chlortetracycline EP Impurity G (CAS 769895-23-0)
- Chlortetracycline EP Impurity A (CAS 14297-93-9)
- Chlortetracycline Hydrochloride EP Impurity F (CAS CATO-C4X-233023)
- Chlortetracycline hydrochloride (CAS 64-72-2)
- Chlortetracycline EP Impurity A HCl (CAS 101342-45-4)
Recommended Standards
- N-(4-chlorophenyl)-1-((2,2-difluorobenzo[d][1,3]dioxol-5-yl)methyl)-N-isopropyl-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 400083-08-1)
- Methyl 4-{[(1E)-2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]sulfanyl}-3-ethoxy-3-oxoprop-1-en-1-yl]amino}benzoate (CAS 338966-74-8)
- Aureomycin EP Impurity K (CAS 81163-11-3)
- 3-(4-((2-Chloro-6-fluorobenzyl)oxy)phenyl)-1-(4-(trifluoromethyl)benzyl)-1H-pyrazole (CAS 477711-64-1)
- Dexmedetomidine Impurity 29 (CAS 176721-02-1)
- Hydantoin Impurity 12 (CAS 113586-23-5)
- Doxofylline impurity 46 (CAS CATO-C4X-151346)
- Ethyl 3-amino-3-(4-fluorophenyl)propanoate (CAS 218166-05-3)
- 1,4-Dihydroxynaphthalene-2,3-dicarbonitrile (CAS 1018-79-7)
- 6-(2-Cyclopropyl-1-(2-fluorophenyl)-2-oxoethyl)-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-2-yl Acetate (CAS 1544531-48-7)
- Carbazochrome Impurity 42 (CAS CATO-C4X-229142)
- N-(2,5-Dichlorophenyl)-4,5-dihydro-1H-imidazol-2-amine (CAS 56514-55-7)
- n-(4-Chlorophenyl)-2-hydroxyacetamide (CAS 21919-09-5)
- [His]1-Acetylated Semaglutide (CAS CATO-C4X-2226219)
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