(S)-3-(1,3-dioxoisoindolin-2-yl)-2-hydroxypropanoic acid CAS 133319-36-5
| CAS No. | 133319-36-5 |
| Molecular Formula | C11H9NO5 |
| Molecular Weight | 235.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(S)-3-(1,3-dioxoisoindolin-2-yl)-2-hydroxypropanoic acid (CAS 133319-36-5), molecular formula C11H9NO5 and molecular weight 235.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H9NO5, (S)-3-(1,3-dioxoisoindolin-2-yl)-2-hydroxypropanoic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (S)-3-(1,3-dioxoisoindolin-2-yl)-2-hydroxypropanoic 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 | C11H9NO5 |
| Molecular Weight | 235.19 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.) | 1995 |
| Nitrogen Atoms | 1 |
Related S Standards
- 1,3-Dioxoisoindolin-2-yl ethyl carbonate (CAS 99972-91-5)
- 3-(1,3-Dioxoisoindolin-2-yl)-2-hydroxypropanoic acid (CAS 62983-58-8)
- Methyl 2-((1,3-dioxoisoindolin-2-yl)oxy)acetate (CAS 80733-98-8)
- 3-(1,3-Dioxoisoindolin-2-yl)-N-hydroxypropanimidamide (CAS 1365988-65-3)
- 2-(2-(1,3-Dioxoisoindolin-2-yl)ethoxy)acetaldehyde (CAS 81142-14-5)
- n-(1,3-Dioxoisoindolin-5-yl)isobutyramide (CAS 328032-47-9)
- Methyl 2-(1,3-dioxoisoindolin-2-yl)acrylate (CAS 26878-24-0)
- 1,3-Dioxoisoindolin-2-yl 2-diazoacetate (CAS 816437-80-6)
Recommended Standards
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- 4-Bromo-3-(4-bromophenyl)propiophenone (CAS 898761-28-9)
- H3L3D7HP42 5418-51-9 5-Nitropyridin-2-ol 2(1H)-Pyridinone, 5-nitro- AI3-19235 EINECS 226-525-7 UNII-H3L3D7HP42 (CAS 5418-51-9)
- 2-Methyl-N-((4-(thiophen-2-yl)tetrahydro-2H-pyran-4-yl)methyl)propane-1-sulfonamide (CAS 1210799-95-3)
- 3-(1-Methyl-1h-pyrazol-5-yl)propan-1-amine (CAS 1314909-50-6)
- 9-Oxo-9H-thioxanthene-2-carboxylic acid (CAS 25095-94-7)
- Venlafaxine Impurity 39 (CAS 93413-46-8)
- 4-Bromo-7-chloroisoindolin-1-one (CAS 1427404-26-9)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
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