2-(4-Aminophenyl)-2,3-dihydro-1h-isoindole-1,3-dione CAS 21835-60-9
| CAS No. | 21835-60-9 |
| Molecular Formula | C14H10N2O2 |
| Molecular Weight | 238.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-Aminophenyl)-2,3-dihydro-1h-isoindole-1,3-dione 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.
2-(4-Aminophenyl)-2,3-dihydro-1h-isoindole-1,3-dione (CAS 21835-60-9), molecular formula C14H10N2O2 and molecular weight 238.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(4-Aminophenyl)-2,3-dihydro-1h-isoindole-1,3-dione (C14H10N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 238.24 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C14H10N2O2 |
| Molecular Weight | 238.24 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Related Aminophenyl Standards
- 2-(2-Aminophenyl)-4H-3,1-benzoxazin-4-one (CAS 7265-24-9)
- 2-(2-Aminophenyl)isoindoline-1,3-dione (CAS 4506-62-1)
- 2-(3-Aminophenyl)-2,3-dihydro-1h-isoindole-1,3-dione (CAS 32338-22-0)
- 2-{4-[(2-aminophenyl)methoxy]phenyl}acetonitrile (CAS 1016525-01-1)
- 2-{4-[(3-aminophenyl)methoxy]phenyl}acetonitrile (CAS 1016750-22-3)
- 1,3-Bis(3-aminophenyl)prop-2-en-1-one (CAS 151678-34-1)
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Recommended Standards
- 2-(4,4-Dimethyl-2,5-dioxoimidazolidin-1-yl)ethane-1-sulfonyl fluoride (CAS 878217-69-7)
- 2-(4-Carboxyphenyl)-1H-benzimidazole (CAS 66631-29-6)
- 2-(4-(1H-pyrazol-5-yl)phenoxy)pyrimidine (CAS 321998-82-7)
- 2-(4-Ethoxyphenyl)succinic acid (CAS 27950-65-8)
- Ethyl 3,4-difluoro-2-methoxybenzoate (CAS 1803847-67-7)
- n-Cyclopropyl-7,9-dimethyl-2,3,4,5-tetrahydro-1-benzoxepin-5-amine (CAS 1153745-82-4)
- Methyl 2-[(4-fluorobenzoyl)amino]benzoate (CAS 75541-83-2)
- Methyl 3-hydroxy-5-(trifluoromethyl)cyclohexane-1-carboxylate (CAS 1993265-20-5)
- 2-Methoxy-6-(trifluoromethyl)pyridine-3-acetonitrile (CAS 1227574-16-4)
- 5-(3-Bromopropyl)-3-methylisoxazolo[4,5-d]pyridazin-4(5H)-one (CAS 923569-63-5)
- 3-Methyl-6-(prop-1-en-2-yl)cyclohex-2-en-1-one (CAS 529-01-1)
- 3-(Furan-3-yl)-2-methylpropanoic acid (CAS 1539849-57-4)
- 3-Cyclohexyl-1-(1-hydroxy-3-phenylpropan-2-yl)urea (CAS 19071-55-7)
- Semaglutide Impurity 161 (x TFA Salt) (CAS CATO-C4X-2226161)
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