2-Hydroxy-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione CAS 7151-24-8
| CAS No. | 7151-24-8 |
| Molecular Formula | C8H9NO3 |
| Molecular Weight | 167.16 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-Hydroxy-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione (CAS 7151-24-8), a certified reference material (molecular formula C8H9NO3, MW 167.16 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H9NO3, 2-Hydroxy-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione 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 167.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 2-Hydroxy-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-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.
Physical & Chemical Properties
| Molecular Formula | C8H9NO3 |
| Molecular Weight | 167.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
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- 2-Hydroxy-3-methoxybenzamide (CAS 26751-04-2)
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- Methyl 3-(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)propanoate (CAS 1282660-71-2)
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- Hydroxychloroquine EP Impurity F (CAS 6281-58-9)
- 5-(4-Chlorophenyl)-1-(2,4-dichlorophenyl)-N,N-dimethyl-1H-pyrazole-3-carboxamide (CAS 477713-34-1)
- 2-[4-(chloromethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1072945-04-0)
- 2-(2-Benzothiazolylamino)ethanol (CAS 18392-47-7)
- Ethyl 1,2,3,4-tetrahydro-7-hydroxy-2-naphthaleneacetate (CAS 214401-41-9)
- 5-(Difluoromethoxy)pyridin-2-amine (CAS 110861-14-8)
- Semaglutide impurity 267 (CAS CATO-C4X-2226267)
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