3-Hydroxy-2-(2-nitrophenyl)-3-phenylisoindolin-1-one CAS 3532-68-1
| CAS No. | 3532-68-1 |
| Molecular Formula | C20H14N2O4 |
| Molecular Weight | 346.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Hydroxy-2-(2-nitrophenyl)-3-phenylisoindolin-1-one (CAS 3532-68-1) is a high-purity analytical reference standard with the molecular formula C20H14N2O4 and a molecular weight of 346.34 g/mol.
Structurally, 3-Hydroxy-2-(2-nitrophenyl)-3-phenylisoindolin-1-one (C20H14N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 346.34 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), 3-Hydroxy-2-(2-nitrophenyl)-3-phenylisoindolin-1-one 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 | C20H14N2O4 |
| Molecular Weight | 346.34 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
- 3-Hydroxy-2-(3-nitrophenyl)-3-phenylisoindolin-1-one (CAS 3532-67-0)
- 2-(3-Hydroxy-6-methoxy-9H-xanthen-9-yl)benzoic acid (CAS 65144-30-1)
- Benzyl Hydroxy(4-phenylbutyl)phosphinoacetate (CAS 87460-09-1)
- 4-(4-(4-Hydroxy-3-methoxybenzyl)-3-(hydroxymethyl)tetrahydrofuran-2-yl)benzene-1,2-diol (CAS 40951-69-7)
- 2-Hydroxy-2-[[3-(phenylmethoxy)phenyl]methylene] Hydrazide Benzoic Acid (CAS 316131-42-7)
- 3-Hydroxy-6-(hydroxymethyl)-2-((4-(4-methoxyphenyl)piperazin-1-yl)methyl)-4H-pyran-4-one (CAS 866019-45-6)
- 6-Ethyl-7-hydroxy-2-methyl-3-(1-phenyl-1h-pyrazol-4-yl)-4h-chromen-4-one (CAS 431915-88-7)
- Ethyl 4-((6-hydroxy-7-methyl-2-oxo-2H-chromen-4-yl)methyl)piperazine-1-carboxylate (CAS 859859-66-8)
Recommended Standards
- 2-Methoxy-4-nitro-9-phenoxyacridine (CAS 89974-84-5)
- 2-Methoxy-3-nitro-9-phenoxyacridine (CAS 89974-83-4)
- 4-(1H-Indol-3-yl)butanenitrile (CAS 59108-95-1)
- 2-Methoxy-1-nitro-9-phenoxyacridine (CAS 89974-82-3)
- Sodium Benzoate-d5 (CAS 62790-26-5)
- 2-(4-Ethylphenoxy)butanoic acid (CAS 161790-26-7)
- Ethyl 2-(3-(1,3-dioxan-2-yl)-4-methoxyphenyl)-2-oxoacetate (CAS 951888-43-0)
- 3-chloro-5-methanesulfinylpyridin-2-amine (CAS 1820673-78-6)
- 2-Hydroxy-3-iodobenzaldehyde (CAS 23602-64-4)
- 2-(4-Bromophenyl)-N-methoxy-N-methylacetamide (CAS 149652-50-6)
- cyclohexyl(1H-imidazol-2-yl)methanol (CAS 154773-77-0)
- (S)-2-Amino-3-(2-bromo-1H-imidazol-4-yl)propanoic acid (CAS 126663-36-3)
- (1,1-Difluorospiro[2.3]hexan-5-yl)methanamine hydrochloride (CAS 2098022-90-1)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com