1-(2-Hydroxy-3-methyl-5-nitrophenyl)ethanone CAS 65348-98-3
| CAS No. | 65348-98-3 |
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(2-Hydroxy-3-methyl-5-nitrophenyl)ethanone 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.
1-(2-Hydroxy-3-methyl-5-nitrophenyl)ethanone (CAS 65348-98-3), molecular formula C9H9NO4 and molecular weight 195.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(2-Hydroxy-3-methyl-5-nitrophenyl)ethanone (C9H9NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 195.17 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H9NO4 |
| Molecular Weight | 195.17 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, 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- 2’-Hydroxy-4’-methyl-5’-nitroacetophenone (CAS 103440-91-1)
- 7-Hydroxy-5-oxo-1,2,3,5-tetrahydroindolizine-8-carboxylic acid (CAS 116993-46-5)
- 2-Hydroxy-4-(methylcarbamoyl)benzoic acid (CAS 1243280-42-3)
- 2-Hydroxy-5-(methylcarbamoyl)benzoic acid (CAS 1243280-47-8)
- 1-(4-Hydroxy-3-nitrophenyl)propan-2-one (CAS 1314934-53-6)
- (2S)-2-Hydroxy-2-(phenylformamido)acetic acid (CAS 142436-48-4)
- 2-Hydroxy-7-methoxy-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 17359-53-4)
- 1-(2-Hydroxy-3-nitrophenyl)propan-1-one (CAS 91991-98-9)
Recommended Standards
- [(2-methoxyphenyl)carbamoyl]formic acid (CAS 57727-23-8)
- (Z)-2-Acetamido-3-(furan-2-yl)acrylic acid (CAS 89908-19-0)
- 1-(2-Hydroxy-5-nitrophenyl)propan-1-one (CAS 55805-95-3)
- (S)-2-Amino-2-(benzo[d][1,3]dioxol-5-yl)acetic acid (CAS 250666-02-5)
- 3-Chloro-N-(4-(pyridin-2-yl)thiazol-2-yl)benzo[b]thiophene-2-carboxamide (CAS 361479-25-6)
- Dihydro-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione (CAS 4874-13-9)
- 2-chloro-4-methyl-1,3-oxazole (CAS 1060816-10-5)
- 2-(4-Hydroxyphenyl)-2-(4-methylpiperazin-1-yl)acetonitrile (CAS 877825-73-5)
- Ethyl 4-(4-bromobenzoyl)benzoate (CAS 746651-80-9)
- 2-Chloro-5-(3-(pyrrolidin-1-yl)propoxy)pyridine (CAS 1517584-12-1)
- (R)-1-amino-2,3-dihydro-1H-indene-5-carboxylic acid (CAS 1213879-16-3)
- tert-Butyl 3-(((6-chloropyridin-3-yl)methyl)(methyl)amino)piperidine-1-carboxylate (CAS 1261234-64-3)
- N-(1H-Indol-6-ylmethyl)-N-(2-phenylethyl)amine (CAS 1017791-19-3)
- Galanin-Like Peptide (rat) trifluoroacetate salt (CAS 245114-97-0)
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