4-amino-3-methyl-1,3-dihydro-2-benzofuran-1-one CAS 705281-79-4
| CAS No. | 705281-79-4 |
| Molecular Formula | C9H9NO2 |
| Molecular Weight | 163.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4-amino-3-methyl-1,3-dihydro-2-benzofuran-1-one (CAS 705281-79-4), a certified reference material (molecular formula C9H9NO2, MW 163.17 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4-amino-3-methyl-1,3-dihydro-2-benzofuran-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 163.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | 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.) | 1985 |
| Nitrogen Atoms | 1 |
Related amino Standards
- 6-Amino-4-chromanone (CAS 103441-69-6)
- 7-Amino-4-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 121062-94-0)
- 7-Amino-3-methylisobenzofuran-1(3H)-one (CAS 148843-77-0)
- 3-amino-3,4-dihydro-2H-1-Benzopyran-2-one (9CI) (CAS 152580-32-0)
- 5-Amino-7-methylbenzofuran-6-ol (CAS 167029-03-0)
- (2S)-2-amino-3-(2-methoxyethoxy)propanoic acid (CAS 319427-45-7)
- (5-amino-1-benzofuran-2-yl)methanol (CAS 741262-62-4)
- 1-Amino-2,5-anhydro-1-deoxy-D-mannitol (CAS 228862-97-3)
Recommended Standards
- 4-Amino-2-methylbenzofuran-5-ol (CAS 65874-36-4)
- 4-Aminopentacyclo[4.2.0.02,5.03,8.04,7]octane-1-carboxylic acid (CAS 744995-90-2)
- 4-Amino-2,5-dimethoxytetrahydrofuran-3-ol (CAS 38961-59-0)
- 4-Ethoxyfuro[3,2-c]pyridine (CAS 63618-61-1)
- 2-(4-Methylphenyl)-1,2,3,4-tetrahydroisoquinoline-1,3-dione (CAS 73109-31-6)
- 7-Fluorobenzo[b]thiophen-2-amine (CAS 1515969-70-6)
- tert-butyl 3-bromo-3-(hydroxymethyl)azetidine-1-carboxylate (CAS 2007919-81-3)
- H-D-Thr(Bzl)-NH? · HCl (CAS 201275-09-4)
- 2,3-Dinitrophenol (CAS 66-56-8)
- Cloransulam-Methyl Impurity 11 (CAS CATO-C4X-317011)
- 3,3',3''-((1,3,5-Triazine-2,4,6-triyl)tris(oxy))tribenzaldehyde (CAS 114567-98-5)
- (4-(Difluoromethyl)-6-methylpyridin-3-yl)methanol (CAS 1805318-27-7)
- Methyl 4-((4-cyano-1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)oxy)benzoate (CAS 318469-10-2)
- Fragment-[3-31]-Liraglutide (CAS CATO-C4X-199232)
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