LD-473 CAS 58721-74-7
| CAS No. | 58721-74-7 |
| Molecular Formula | C17H19F3N2O |
| Molecular Weight | 324.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies LD-473 (CAS 58721-74-7), a certified reference material (molecular formula C17H19F3N2O, MW 324.34 g/mol) for analytical method development and quality control.
LD-473 (C17H19F3N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), LD-473 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H19F3N2O |
| Molecular Weight | 324.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1-(4-Methoxyphenyl)-3-((1-phenyl-1H-tetrazol-5-yl)methyl)urea (CAS 950473-28-6)
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- 1-((1-(4-Methoxyphenyl)-1H-tetrazol-5-yl)methyl)-3-phenylurea (CAS 951547-19-6)
- N1,N2-di(pyrimidin-2-yl)cyclohex-4-ene-1,2-dicarboxamide (CAS 478033-98-6)
- 2-(3-Bromophenoxy)propanoic acid (CAS 41183-67-9)
- 1,3-Dichloro-3-methylbutane (CAS 624-96-4)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com