Leptophos CAS 21609-90-5
| CAS No. | 21609-90-5 |
| Molecular Formula | C13H10BrCl2O2PS |
| Molecular Weight | 412.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 412.07 g/mol gives Leptophos distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Leptophos (CAS 21609-90-5), a certified reference material (molecular formula C13H10BrCl2O2PS, MW 412.07 g/mol) for analytical method development and quality control.
The molecular framework of Leptophos (C13H10BrCl2O2PS) is characterized by a sulfone group, organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Leptophos 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 | C13H10BrCl2O2PS |
| Molecular Weight | 412.07 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Recommended Standards
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Why CATO?
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