2-Chloro-4-Nitrophenol CAS 619-08-9
| CAS No. | 619-08-9 |
| Molecular Formula | C6H4ClNO3 |
| Molecular Weight | 173.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-Chloro-4-Nitrophenol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 173.55 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).
CATO supplies 2-Chloro-4-Nitrophenol (CAS 619-08-9), a certified reference material (molecular formula C6H4ClNO3, MW 173.55 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Chloro-4-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.
Physical & Chemical Properties
| Molecular Formula | C6H4ClNO3 |
| Molecular Weight | 173.55 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| 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.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-Chloro-6-oxo-1,6-dihydropyridine-2-carboxylic Acid (CAS 103997-21-3)
- 2-Chloro-5-hydroxyisonicotinic acid (CAS 1060804-57-0)
- 6-Chloro-4-hydroxypicolinic acid (CAS 1060809-87-1)
- 4-Chloro-6-nitrosoresorcinol (CAS 109755-36-4)
- 5-Chloro-3-hydroxypicolinic acid (CAS 1211515-34-2)
- 3-Chloro-4-hydroxypicolinic acid (CAS 1211518-09-0)
- 6-Chloro-5-hydroxynicotinic acid (CAS 1211531-26-8)
- 3-Chloro-5-hydroxypicolinic acid (CAS 1211536-84-3)
Recommended Standards
- Avatrombopag Impurity 40 (CAS 54127-63-8)
- 5-Chloro-2-nitrophenol (CAS 611-07-4)
- 3-Chloro-2,6-difluorobenzonitrile 3475AC 86225-73-2 C7H2ClF2N (CAS 86225-73-2)
- 4-Chloro-3-nitrophenol (CAS 610-78-6)
- 950455-12-6 N-(2-Methylbenzyl)-1'H-spiro[piperidine-4,2'-quinoxalin]-3'-amine MFCD14281799 (CAS 950455-12-6)
- 2,3-Dibromobenzo[b]thiophene 2,3-Dibromothianaphthene 6287-82-7 (CAS 6287-82-7)
- Chroman-3-one (CAS 19090-04-1)
- Ethyl 1-(4-methyl-6-(trifluoromethyl)pyrimidin-2-yl)piperidine-4-carboxylate (CAS 832740-03-1)
- 2-Oxo-3-(o-tolyl)propanoic acid (CAS 61676-24-2)
- 1-(3-Amino-1H-pyrrol-2-yl)ethan-1-one (CAS 63385-08-0)
- tert-Butyl 4-amino-2-oxo-5,6-dihydropyridine-1(2H)-carboxylate (CAS 1333319-62-2)
- 2-Bromo-4-chloro-6-hydroxytoluene (CAS 1082040-46-7)
- 2-(6-Bromo-5-(bromomethyl)-3-(difluoromethyl)pyridin-2-yl)acetonitrile (CAS 1805341-34-7)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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