Fluorescein impurity 01 CAS 76579-17-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 76579-17-4 |
| Molecular Formula | C28H29ClN2O4 |
| Molecular Weight | 492.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Fluorescein impurity 01 (CAS 76579-17-4) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C28H29ClN2O4. Molecular weight: 492.99 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C28H29ClN2O4 |
| Molecular Weight | 492.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 9-Chloro Triamcinolone Acetonide 21-Acetate (CAS 10392-75-3)
- Venetoclax Impurity 90 (CAS CATO-C4X-249590)
- Apremilast Impurity 38 (CAS 2095036-40-9)
- Ethyltri-n-propyltin (CAS 3440-79-7)
- 1-(2-Bromopropyl)-3-fluorobenzene (CAS 1021927-57-0)
- 1H-Isoindole (CAS 270-69-9)
- 4,4,5,5-Tetramethyl-2-(2,4,5-trimethylthiophen-3-yl)-1,3,2-dioxaborolane (CAS 2064117-97-9)
- endo-Gly31-Semaglutide (CAS CATO-C4X-2226282)
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