Tretinoin Impurity 26 CAS 62285-98-7
| CAS No. | 62285-98-7 |
| Molecular Formula | C33H38P |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tretinoin Impurity 26 (CAS 62285-98-7), a pharmacopoeial impurity reference standard (molecular formula C33H38PBr, MW 545.54 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to organophosphorus functionality, bromine substitution, a polycyclic aromatic system, Tretinoin Impurity 26 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 545.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Tretinoin Impurity 26 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 | C33H38P Br |
| Molecular Weight | 545.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | ＞85% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
Related Tretinoin Standards
Recommended Standards
- Roxadustat Impurity 136 (CAS CATO-C4X-2213136)
- Cefcapene Impurity 48 (CAS CATO-C4X-182448)
- Ivabradine Impurity 41 (CAS CATO-C4X-111941)
- L-Lysine hydrate (CAS 39665-12-8)
- Methyl 2-(6-methoxypyridazin-3-yl)-2H-1,2,3-triazole-4-carboxylate (CAS 1431728-43-6)
- Probucol Impurity 16 (CAS 2093160-06-4)
- 2-Fluoro-4-(methylthio)phenol (CAS 140220-05-9)
- 1-Butyl-cyclobutanecarbaldehyde (CAS 62407-83-4)
- 4-Methyl-6-(pyridin-2-ylthio)pyrimidin-2-amine (CAS 283171-79-9)
- (Cys2)-Neuropeptide Y-8-aminooctanoyl-(D-Cys27)-Neuropeptide Y (25-32) (H-3298.0500) (CAS 128806-04-2)
Why CATO?
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