2-Chloro-6-methyl-3-nitrophenol CAS 39183-20-5
| CAS No. | 39183-20-5 |
| Molecular Formula | C7H6ClNO3 |
| Molecular Weight | 187.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Chloro-6-methyl-3-nitrophenol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
2-Chloro-6-methyl-3-nitrophenol (CAS 39183-20-5), molecular formula C7H6ClNO3 and molecular weight 187.58 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Chloro-6-methyl-3-nitrophenol (C7H6ClNO3) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H6ClNO3 |
| Molecular Weight | 187.58 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.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-Chloro-4-methyl-2-nitrophenol (CAS 100278-74-8)
- N-(6-Chloro-3-oxo-2,3-dihydropyridazin-4-yl)acetamide (CAS 100367-79-1)
- 3-Chloro-4-methyl-5-nitropyridin-2-amine (CAS 1003710-31-3)
- 2-Chloro-5-nitroanisole (CAS 1009-36-5)
- 2-Chloro-4-methyl-5-nitrophenol (CAS 100959-50-0)
- 5-Chloro-1-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 101384-60-5)
- 4-Chloro-5-methoxypicolinic acid (CAS 103878-33-7)
- 2-Chloro-5-methoxyisonicotinic acid (CAS 1060801-70-8)
Recommended Standards
- 2-Chloro-6-methoxynicotinic Acid (CAS 503000-87-1)
- 2-Chloro-6-methyl-4-nitrophenol (CAS 4102-84-5)
- 2-Chloro-5-nitro-1,4-benzenediamine (CAS 26196-45-2)
- 2-Chloro-6-nitroanisole (CAS 80866-77-9)
- Methyl 2-(5-hydroxy-1-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-1H-pyrazol-3-yl)acetate (CAS 1956340-78-5)
- 2-Bromopyridine-4-carboxaldehyde (CAS 118289-17-1)
- Dimethyl 4-methoxybenzylphosphonate (CAS 17105-65-6)
- 2-Oxa-8-azaspiro[4.5]decan-4-onehydrochloride (CAS 2306270-36-8)
- 4-Bromo-3-cyclopropoxy-2-isopropylpyridine (CAS 1243479-83-5)
- D-erythro-Dihydro-D-sphingosine-1-phosphate (CAS 19794-97-9)
- Tert-butyl 4-(6-amino-5-nitropyrimidin-4-yl)piperazine-1-carboxylate (CAS 245450-04-8)
- 4-(5-(Cinnamylthio)-4-methyl-4H-1,2,4-triazol-3-yl)pyridine (CAS 676246-75-6)
- 1-[5-(2-fluorophenyl)-1,3,4-thiadiazol-2-yl]ethan-1-amine (CAS 1542100-93-5)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
Why CATO?
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