3-Chloro-5-methoxy-2-nitroaniline CAS 2091591-51-2
| CAS No. | 2091591-51-2 |
| Molecular Formula | C7H7ClN2O3 |
| Molecular Weight | 202.60 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 3-Chloro-5-methoxy-2-nitroaniline (CAS 2091591-51-2), a certified reference material (molecular formula C7H7ClN2O3, MW 202.60 g/mol) for analytical method development and quality control.
3-Chloro-5-methoxy-2-nitroaniline (C7H7ClN2O3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures 3-Chloro-5-methoxy-2-nitroaniline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7ClN2O3 |
| Molecular Weight | 202.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 6-Chloro-2-ethoxy-3-nitropyridine (CAS 1094323-19-9)
- 2-Chloro-N,N-dimethyl-5-nitropyrimidin-4-amine (CAS 1131-14-2)
- 1-(2-Chloro-5-nitropyridin-4-yl)ethanol (CAS 1214241-89-0)
- Methyl 6-chloro-2-methoxypyrimidine-4-carboxylate (CAS 127840-06-6)
- Methyl 2-chloro-6-methoxypyrimidine-4-carboxylate (CAS 127861-30-7)
- 4-Chloro-2,6-dimethoxypyrimidine-5-carbaldehyde (CAS 134221-52-6)
- 2-Chloro-3-ethoxy-5-nitropyridine (CAS 1352910-89-4)
- 4-Chloro-6-ethyl-5-nitro-2-pyrimidinamine (CAS 1384431-00-8)
Recommended Standards
- 3-Chloro-2-ethoxy-5-nitropyridine (CAS 874492-07-6)
- 4,6-Dimethoxypyrimidine-2-carbonyl chloride (CAS 509101-33-1)
- 2-chloro-6-methoxy-4-nitroaniline (CAS 41956-18-7)
- 4-Chloro-2-methoxy-5-nitroaniline (CAS 22459-72-9)
- 1-(3,5-Dimethyl-1H-pyrazol-1-yl)propan-2-ol (CAS 742097-03-6)
- (1S,2R,4S,5R)-2-((S)-Hydroxy(quinolin-4-yl)methyl)-1-(2-((2-isopropylphenyl)amino)-2-oxoethyl)-5-vinylquinuclidin-1-ium bromide (CAS 2798945-95-4)
- 2-Bromo-5-fluoro-4-methyl-3-nitropyridine (CAS 917918-84-4)
- 2-{[(tert-butoxy)carbonyl]amino}-2-(2-ethyl-1,3-thiazol-4-yl)acetic acid (CAS 438252-51-8)
- Dobutamine Impurity 59 (CAS CATO-C4X-129859)
- 2-Iodo-4-(trifluoromethyl)thiazole-5-carboxylic acid (CAS 1205561-15-4)
- ACPT-I (CAS 194918-76-8)
- n-(4-Fluorophenyl)cyclopropanecarboxamide (CAS 2354-89-4)
- 4-FLUOROBENZYL PIPERIDINE-4-CARBOXYLATE HCL (CAS 1135234-93-3)
- Semaglutide Impurity 144 (CAS 394210-59-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com