5-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-2-ethoxybenzoic acid CAS 735322-80-2
| CAS No. | 735322-80-2 |
| Molecular Formula | C18H15NO5 |
| Molecular Weight | 325.32 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.
5-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-2-ethoxybenzoic acid (CAS 735322-80-2), molecular formula C18H15NO5 and molecular weight 325.32 g/mol, is a CATO reference standard with documented purity and traceability.
5-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-2-ethoxybenzoic acid (C18H15NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-2-ethoxybenzoic acid 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 | C18H15NO5 |
| Molecular Weight | 325.32 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 5-(but-3-ynylamino)-2-(2,6-dioxo-3-piperidyl)isoindoline-1,3-dione (CAS 2357113-11-0)
- N'-(2-(1H-benzo[d][1,2,3]triazol-1-yl)acetyl)-4-methoxybenzohydrazide (CAS 306990-69-2)
- 2-[(3-Methoxy-4-{[3-(trifluoromethyl)benzyl]oxy}phenyl)methylene]malononitrile (CAS 398131-33-4)
- 2-(4-Hydroxypiperidin-1-yl)acetic acid hydrochloride (CAS 1181544-77-3)
- N-Methyl-4-{6-methyl-[1,2,4]triazolo[3,2-b][1,3]thiazol-5-yl}-1,3-thiazol-2-amine (CAS 187596-92-5)
- 3-(3-Pyridinylmethyl)-2-thioxo-1,3-thiazolidin-4-one (CAS 51216-58-1)
- 3-Methoxy-3-(trifluoromethyl)azetidine hydrochloride (CAS 2126162-29-4)
- 6-Fluoro-2-hydrazinyl-3-methylquinoline hydrochloride (CAS 1171668-88-4)
- Imrecoxib Impurity 48（Z-isomer） (CAS CATO-C4X-237948)
- Ethyl 5-chloro-3-iodo-1H-indole-2-carboxylate (CAS 167631-19-8)
- 1-Benzyloxy-6-bromo-2,3-difluorobenzene (CAS 2230481-34-0)
- [3,5 Diiodo-Tyr7] Peptide T (CAS 128551-40-6)
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