2-(4-Ethylphenyl)-5-nitroisoindoline-1,3-dione CAS 89024-45-3
| CAS No. | 89024-45-3 |
| Molecular Formula | C16H12N2O4 |
| Molecular Weight | 296.28 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.
2-(4-Ethylphenyl)-5-nitroisoindoline-1,3-dione (CAS 89024-45-3), molecular formula C16H12N2O4 and molecular weight 296.28 g/mol, is a CATO reference standard with documented purity and traceability.
2-(4-Ethylphenyl)-5-nitroisoindoline-1,3-dione (C16H12N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.
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 | C16H12N2O4 |
| Molecular Weight | 296.28 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
Related Ethylphenyl Standards
- 2-(4-Ethylphenyl)-4-nitroisoindoline-1,3-dione (CAS 89024-44-2)
- 2-(((4-Ethylphenyl)amino)methyl)-3a,4,7,7a-tetrahydro-1H-4,7-methanoisoindole-1,3(2H)-dione (CAS 1241674-58-7)
- 5-((4-Ethylphenyl)sulfonyl)-2-mercaptopyrimidin-4-ol (CAS 1255782-97-8)
- 2-{[(4-ethylphenyl)methyl]sulfanyl}-5-phenyl-1,3,4-oxadiazole (CAS 477846-57-4)
- 3-(4-Ethylphenyl)-2,2-dimethyl-2,3-dihydroquinazoline-4(1H)-thione (CAS 823195-54-6)
- 3-(2-ethylphenyl)-2-sulfanyl-3,4-dihydroquinazolin-4-one (CAS 177951-34-7)
- 2-(4-Ethylphenyl)quinoline-4-carbonyl chloride (CAS 1160264-62-9)
- N-[(4-Ethylphenyl)methyl]-2,2,4-trimethyl-2,3-dihydro-1-benzofuran-7-amine (CAS 866042-49-1)
Recommended Standards
- 2-(5-(2-(5-Nitrofuran-2-yl)vinyl)furan-2-yl)aniline (CAS 62144-39-2)
- 2-(4-((tert-Butoxycarbonyl)amino)-2-nitrophenyl)acetic acid (CAS 512180-63-1)
- 2-(5-(2-Methoxyphenyl)-1,3,4-oxadiazol-2-yl)benzoic acid (CAS 56894-55-4)
- 2-(2-Methoxy-4-nitrophenoxy)-1-morpholinoethan-1-one (CAS 899368-48-0)
- 2-(tert-Butoxy)-5-cyclopropoxy-N-methylpyridin-4-amine (CAS 1243481-67-5)
- (E)-Ethyl 1-allyl-2-benzylidenehydrazinecarboxylate (CAS 111508-26-0)
- 4-Bromo-3-fluoroanisole (CAS 458-50-4)
- 3-(1-Ethyl-5-methyl-1H-pyrazol-4-yl)-4,5-dihydroisoxazole-5-carboxylic acid (CAS 957258-38-7)
- tert-Butyl (3R,4S)-4-amino-3-methylpiperidine-1-carboxylate (CAS 1820569-34-3)
- (5-Nitrofuran-2-yl)methyl 3-chloropropanoate (CAS 13295-81-3)
- 4-(4-Fluorophenyl)-2-methyl-1-(prop-2-yn-1-yl)-1H-imidazol-5-amine (CAS 1269534-48-6)
- 2-Bromo-4-(bromomethyl)furan (CAS 92753-15-6)
- tert-Butyl methyl(2-(2-(methylamino)ethoxy)ethyl)carbamate (CAS 1465601-43-7)
- [14-31]-Semaglutide (CAS CATO-C4X-2226262)
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