2,3-Dinitroaniline CAS 602-03-9
| CAS No. | 602-03-9 |
| Molecular Formula | C6H5N3O4 |
| Molecular Weight | 183.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,3-Dinitroaniline 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.
CATO supplies 2,3-Dinitroaniline (CAS 602-03-9), a certified reference material (molecular formula C6H5N3O4, MW 183.12 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, 2,3-Dinitroaniline is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 183.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C6H5N3O4 |
| Molecular Weight | 183.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 1957 |
| Nitrogen Atoms | 3 |
Related Dinitroaniline Standards
Recommended Standards
- Procaine Impurity 3 (CAS 619-19-2)
- Indocyanine Green Impurity 15 (2,4-Dinitroaniline) (CAS 97-02-9)
- Darolutamide Impurity 32 (CAS CATO-C4X-310632)
- Entacapone EP Impurity C(Mixtures of tautomers) (CAS 116313-85-0)
- (e)-3-(2,3-Difluorophenyl)prop-2-en-1-ol (CAS 1033010-15-9)
- Tert-butyl 2-((tetrahydro-2H-thiopyran-3-yl)methyl)hydrazine-1-carboxylate (CAS 1873883-56-7)
- (5-Phenyl-3-isoxazolyl)methyl 2,4-dichlorobenzenecarboxylate (CAS 343374-55-0)
- 1,3,4-Trimethyl-1h-pyrazolo[3,4-b]pyridin-6-yl 3-nitrobenzene-1-sulfonate (CAS 929972-93-0)
- (S)-5-(3,3-Dimethylbutan-2-yl)isoxazole (CAS 111504-55-3)
- Arachidonoyl Glycine-d8 (CAS 1159908-44-7)
- (2-Bromophenyl)(pentyl)sulfane (CAS 1332345-49-9)
- 5-Cyclopropoxy-6-(methylamino)picolinamide (CAS 1243315-94-7)
- 8-(Morpholinosulfonyl)dibenzo[b,d]furan-3-amine (CAS 696643-18-2)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
Why CATO?
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