Dalilesen Impurity 1 CAS 54413-93-3
| CAS No. | 54413-93-3 |
| Molecular Formula | C8H7IO3 |
| Molecular Weight | 278.04 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Dalilesen Impurity 1 (CAS 54413-93-3), a pharmacopoeial impurity reference standard (molecular formula C8H7IO3, MW 278.04 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C8H7IO3, Dalilesen Impurity 1 contains a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 278.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Dalilesen Impurity 1 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 | C8H7IO3 |
| Molecular Weight | 278.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | I-containing |
Related Dalilesen Standards
- Dalilesen impurity 26 (CAS CATO-C4X-301026)
- Dalilesen Impurity 43 (CAS CATO-C4X-301043)
- Dalilesen Impurity 21 (CAS CATO-C4X-301021)
- Dalilesen Impurity 9 (CAS CATO-C4X-30109)
- Dalilesen impurity 46 (CAS CATO-C4X-301046)
- Dalilesen impurity 13 (CAS 1788946-71-3)
- Dalilesen Impurity 17 (CAS CATO-C4X-301017)
- Dalilesen impurity 54 (CAS CATO-C4X-301054)
Recommended Standards
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- Rosuvastatin Impurity 42 (CAS 851443-04-4)
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- Methyl 5-(dipropylcarbamoyl)-2-(4-fluorobenzamido)-4-methylthiophene-3-carboxylate (CAS 335405-83-9)
- Ethyl 4-bromo-1-propyl-1H-pyrazole-3-carboxylate (CAS 1856075-20-1)
- 2-Amino-4-methoxy-4-oxobutanoic acid (CAS 1835-51-4)
- 5-Hydroxy-3-[4-(trifluoromethyl)phenyl]isoxazole (CAS 1188228-02-5)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
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