Trimethoprim Impurity 6 CAS 7520-69-6
| CAS No. | 7520-69-6 |
| Molecular Formula | C14H17NO4 |
| Molecular Weight | 263.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Trimethoprim Impurity 6 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.
Trimethoprim Impurity 6 (CAS 7520-69-6), molecular formula C14H17NO4 and molecular weight 263.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H17NO4, Trimethoprim Impurity 6 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C14H17NO4 |
| Molecular Weight | 263.29 g/mol |
| Appearance | Off-white to pale 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
Related Trimethoprim Standards
- Trimethoprim Impurity 2 (CAS 72920-13-9)
- Trimethoprim Impurity 2 (CAS 51210-04-9)
- Trimethoprim (CAS 738-70-5)
- Trimethoprim EP Impurity D (CAS 92440-76-1)
- Trimethoprim EP Impurity E (CAS 60729-91-1)
- Trimethoprim Impurity 1 (CAS 93885-69-9)
- Trimethoprim-13C3 (CAS 1189970-95-3)
- Trimethoprim-d3 (CAS 1189923-38-3)
Recommended Standards
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- Salbutamol Impurity 97 (CAS 53942-75-9)
- 2-(4-Amino-3,5-dimethyl-1h-pyrazol-1-yl)-N-ethyl-N-methylacetamide (CAS 1152607-65-2)
- 1,5-Dichloro-2-methoxy-3-nitrobenzene (CAS 37138-82-2)
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- 9-((2-Chlorobenzyl)sulfonyl)-1,5-dioxa-9-azaspiro[5.5]undecane (CAS 1327705-55-4)
- 2,3-Dihydro-benzofuran-2-carbonyl chloride (CAS 27347-32-6)
- (4-Iodophenyl)(4-pentylphenyl)methanone (CAS 951887-57-3)
- (E)-3-(Furan-2-yl)-1-(3-nitrophenyl)prop-2-en-1-one (CAS 132434-55-0)
- 92KKC0S28T 637-49-0 Coniine hydrobromide Piperidine, 2-propyl-, hydrobromide, (S)- (9CI) EINECS 211-286-3 (S)-2-Propylpiperidine hydrobromide UNII-92KKC0S28T (CAS 637-49-0)
- N',4-Dimethyl-1H-pyrazole-3-carbohydrazide (CAS 89270-60-0)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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