3,5-Dimethyl-4-nitrophenol CAS 5344-97-8
| CAS No. | 5344-97-8 |
| Molecular Formula | C8H9NO3 |
| Molecular Weight | 167.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Dimethyl-4-nitrophenol (C8H9NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3,5-Dimethyl-4-nitrophenol (CAS 5344-97-8), molecular formula C8H9NO3 and molecular weight 167.16 g/mol, is a CATO reference standard with documented purity and traceability.
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 | 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.) | 1958 |
| Nitrogen Atoms | 1 |
Related Dimethyl Standards
- 1,2-Dimethyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 1023813-29-7)
- 1,6-Dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid (CAS 1365963-81-0)
- 4,5-Dimethyl-2-oxo-1,2-dihydro-pyridine-3-carboxylic acid (CAS 1368443-90-6)
- 2,4-Dimethyl-6-nitrophenol (CAS 14452-34-7)
- 2,4-Dimethyl-5-nitrophenol (CAS 14969-00-7)
- 4,5-Dimethyl-2-nitrophenol (CAS 18087-10-0)
- 1,5-Dimethyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 1823930-52-4)
- 2,3-Dimethyl-4-nitrophenol (CAS 19499-93-5)
Recommended Standards
- 3,5-Dimethyl-2-nitrophenol (CAS 5345-09-5)
- 3,5-Dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid (CAS 447461-21-4)
- 3,5-Dimethoxyisonicotinaldehyde (CAS 204862-70-4)
- 3,6-Dimethyl-2-nitrophenol (CAS 71608-10-1)
- 2-(((Benzyloxy)carbonyl)(methyl)amino)-2-phenylacetic acid (CAS 93818-40-7)
- 5-(2-Fluorophenyl)-3-hydroxy-4-(5-methylfuran-2-carbonyl)-1-((tetrahydrofuran-2-yl)methyl)-1H-pyrrol-2(5H)-one (CAS 618073-42-0)
- (3-Phenyl-1H-1,2,4-triazol-5-yl)methanamine hydrobromide (CAS 90868-55-6)
- 2-Propionyl phenothiazine N-carboxylic acid 3-(dimethylamino)propyl ester (CAS 1195865-71-4)
- 1-methyl-1-(pyridin-4-ylmethyl)guanidine hydrochloride (CAS 1864061-14-2)
- Cenobamate Impurity 55 (CAS CATO-C4X-241655)
- 1,2-Di-p-tolylethyne (CAS 2789-88-0)
- 2-((4-Ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)acetamide (CAS 618414-65-6)
- 6-Chloro-5-ethoxypicolinimidamide hydrochloride (CAS 1179359-82-0)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
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