(S)-2,2'-Dihydroxy-[1,1'-binaphthalene]-3-carboxaldehyde CAS 345659-34-9
| CAS No. | 345659-34-9 |
| Molecular Formula | C21H14O3 |
| Molecular Weight | 314.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(S)-2,2'-Dihydroxy-[1,1'-binaphthalene]-3-carboxaldehyde (CAS 345659-34-9), molecular formula C21H14O3 and molecular weight 314.33 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (S)-2,2'-Dihydroxy-[1,1'-binaphthalene]-3-carboxaldehyde (C21H14O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H14O3 |
| Molecular Weight | 314.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related S Standards
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Recommended Standards
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- 2-((4-(4-Fluorophenyl)phthalazin-1-yl)thio)acetic acid (CAS 554404-23-8)
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- (S)-2-(4-Hydroxy-2-butyl)isoindoline-1,3-dione (CAS 545376-10-1)
- n'-Hydroxy-1,2,3,4-tetrahydronaphthalene-1-carboximidamide (CAS 791005-33-9)
- 3-Bromo-3-fluoro-4-methoxy-3lambda5-1,1'-biphenyl (CAS 1443305-68-7)
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- (R)-6-(2-(Methylthio)ethyl)piperazin-2-one (CAS 1240586-26-8)
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- 5-Bromo-2-(4-isopropylpiperazin-1-yl)pyrimidine (CAS 566158-43-8)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
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