2-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)propanal CAS 23101-87-3
| CAS No. | 23101-87-3 |
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)propanal (CAS 23101-87-3), a certified reference material (molecular formula C11H9NO3, MW 203.19 g/mol) for analytical method development and quality control.
Structurally, 2-(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)propanal (C11H9NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 203.19 g/mol, it falls into the medium-molecular-weight range. 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).
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 | C11H9NO3 |
| Molecular Weight | 203.19 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, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Related Dioxo Standards
- Ethyl (2,4-dioxo-1,3-thiazolidin-3-yl)acetate (CAS 39137-34-3)
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- 2-(2,3-Dioxo-2,3-dihydro-indol-1-yl)-acetamide (CAS 85124-17-0)
- 2,5-Dioxo-4-phenylimidazolidine-4-carbaldehyde (CAS 6952-40-5)
- 2-(4,6-Dioxo-2-thioxohexahydropyrimidin-5-yl)acetic acid (CAS 859956-96-0)
- 2-[(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)oxy]acetonitrile (CAS 75372-44-0)
- 3-(1,3-Dioxo-2,3,3a,4,7,7a-hexahydro-1H-isoindol-2-yl)propanenitrile (CAS 100060-32-0)
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Recommended Standards
- 1-Oxo-1,2-dihydro-isoquinoline-4-carboxylic acid methyl ester (CAS 37497-84-0)
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- 1-Oxo-1,2-dihydroisoquinolin-5-yl acetate (CAS 656233-56-6)
- 2-(1-Methylidene-3-oxo-2,3-dihydro-1h-isoindol-2-yl)acetic acid (CAS 62100-28-1)
- (S)-1-Boc-3-(Hydroxymethyl)pyrrolidine (CAS 199174-24-8)
- 2-(Ethoxymethyl)-1,3-thiazole-4-carboxylic acid (CAS 1495157-12-4)
- Ethyl 3-(benzylamino)-8-azabicyclo[3.2.1]octane-8-carboxylate (CAS 1823467-33-9)
- Tert-butyl 3-(4-methoxyphenyl)-3-oxopropanoate (CAS 54441-74-6)
- 4-Cyclopropoxy-2-fluoro-1-methylbenzene (CAS 1243288-14-3)
- 1-(3-Chloro-4-methylphenyl)propan-1-ol (CAS 1270583-39-5)
- 5-(4-Ethoxyphenyl)-6-thioxo-1,5,6,7-tetrahydro-4H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 422540-26-9)
- (2E)-2-(Nitromethylidene)-1,3-thiazolidine (CAS 94662-61-0)
- (2-Bromo-5-ethylthiazol-4-yl)methanol (CAS 1478717-29-1)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
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