2-(Naphthalen-1-yl)isoindoline-1,3-dione CAS 5333-99-3
| CAS No. | 5333-99-3 |
| Molecular Formula | C18H11NO2 |
| Molecular Weight | 273.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(Naphthalen-1-yl)isoindoline-1,3-dione is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(Naphthalen-1-yl)isoindoline-1,3-dione (CAS 5333-99-3), molecular formula C18H11NO2 and molecular weight 273.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H11NO2, 2-(Naphthalen-1-yl)isoindoline-1,3-dione contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 273.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-(Naphthalen-1-yl)isoindoline-1,3-dione 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 | C18H11NO2 |
| Molecular Weight | 273.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- Ethyl 3-chloro-1-methyl-1H-pyrrole-2-carboxylate (CAS 1478503-37-5)
- Pancreatic Polypeptide (1-17)-(Ala31,Aib32)-Neuropeptide Y (18-36) (human) trifluoroacetate salt (CAS 313988-70-4)
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