3-Hydroxy-2-methyl-2,3-dihydro-1h-isoindol-1-one CAS 29879-69-4
| CAS No. | 29879-69-4 |
| Molecular Formula | C9H9NO2 |
| Molecular Weight | 163.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Hydroxy-2-methyl-2,3-dihydro-1h-isoindol-1-one is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Hydroxy-2-methyl-2,3-dihydro-1h-isoindol-1-one (CAS 29879-69-4), molecular formula C9H9NO2 and molecular weight 163.17 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H9NO2, 3-Hydroxy-2-methyl-2,3-dihydro-1h-isoindol-1-one 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 163.17 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.
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), 3-Hydroxy-2-methyl-2,3-dihydro-1h-isoindol-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 | C9H9NO2 |
| Molecular Weight | 163.17 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- (Z)-4-Hydroxy-4-(pyridin-2-yl)but-3-en-2-one (CAS 1031694-63-9)
- 7-Hydroxy-2-methylisoindolin-1-one (CAS 1033809-93-6)
- 5-Hydroxy-7-methylindolin-2-one (CAS 1082041-62-0)
- 5-Hydroxy-2-methyl-2,3-dihydro-1h-isoindol-1-one (CAS 109803-65-8)
- 6-Hydroxy-7-methylisoindolin-1-one (CAS 1138220-70-8)
- 6-Hydroxy-5-methylisoindolin-1-one (CAS 1138220-72-0)
- 3-Hydroxy-6,7-dihydroquinolin-8(5H)-one (CAS 1196153-30-6)
- 3-Hydroxy-7,8-dihydroquinolin-5(6H)-one (CAS 1211582-47-6)
Recommended Standards
- 3-Hydroxy-1-methylindolin-2-one (CAS 3335-86-2)
- 3-Hydroxy-3,4-dihydroquinolin-2(1H)-one (CAS 301155-96-4)
- 3-Ethylbenzo[d]isoxazol-6-ol (CAS 66033-93-0)
- 3-Hydroxy-3-methylindolin-2-one (CAS 3040-34-4)
- 3-[4-(1-{bicyclo[2.2.1]heptan-2-yl}ethyl)-5-sulfanyl-4H-1,2,4-triazol-3-yl]-N,N-diethylbenzene-1-sulfonamide (CAS 1132639-45-2)
- N1,N2-Bis(4-hydroxyphenyl)oxalamide (CAS 19532-75-3)
- tert-Butyl 4-(4-chloro-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylate (CAS 1205537-34-3)
- 1-(5-Bromo-2-fluorophenyl)propan-2-ol (CAS 1248151-88-3)
- Ethyl 3-(5-Nitropyridin-2-Yl)Benzoate (CAS 1258391-89-7)
- 1-(Bromomethyl)-2,5-dichloro-3-nitrobenzene (CAS 1009349-32-9)
- (3-Fluoro-5-(pentyloxy)phenyl)methanol (CAS 1443348-74-0)
- (S)-3-(morpholin-2-yl)propanoic acid (CAS 1787297-24-8)
- 2-(4-(Hydroxymethyl)phenyl)-2-methylpropanenitrile (CAS 91132-15-9)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
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