2-Chloro-4-hydroxy-5-nitrobenzoic acid CAS 792952-51-3
| CAS No. | 792952-51-3 |
| Molecular Formula | C7H4ClNO5 |
| Molecular Weight | 217.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-4-hydroxy-5-nitrobenzoic acid (CAS 792952-51-3) is a high-purity analytical reference standard with the molecular formula C7H4ClNO5 and a molecular weight of 217.56 g/mol.
2-Chloro-4-hydroxy-5-nitrobenzoic acid (C7H4ClNO5) 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 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.
CATO manufactures 2-Chloro-4-hydroxy-5-nitrobenzoic acid 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 | C7H4ClNO5 |
| Molecular Weight | 217.56 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- 2-(2-Chloroacetamido)ethyl dihydrogen phosphate (CAS 63942-73-4)
- (2,4,6-trichlorophenyl)methanol 2 4 6-TRICHLOROBENZYL ALCOHOL 97 217479-60-2 (CAS 217479-60-2)
- Ethacridine Lactate Impurity 21 (CAS CATO-C4X-260921)
- 3-Chloro-2,4-difluoro-6-(trifluoromethyl)pyridine (CAS 1214391-92-0)
- 3-[1-(2-Fluorophenyl)-1H-pyrazol-3-yl]-1-[3-(trifluoromethyl)phenyl]-1,4-dihydropyridazin-4-one (CAS 318498-08-7)
- 2-Methoxy-5-(2-cyanophenylacetyl)pyridine (CAS 898785-91-6)
- 5,6,7,8-Tetrahydroimidazo[1,5-a]pyrazine-1-carboxylic acid (CAS 1368103-13-2)
- 7-Methoxy-4,5-dihydro-1H-benzo[d]azepin-2(3H)-one (CAS 17639-45-1)
- tert-Butyl 7-(aminomethyl)-5-oxa-2-azaspiro[3.4]octane-2-carboxylate (CAS 1330765-27-9)
- (E)-3-chloro-2-methyl-3-(2-thenyl) acrolein (CAS 96924-57-1)
- 3-Amino-4-chloro-benzenesulfonic acid 4-amino-phenyl ester (CAS 64910-68-5)
- 1-Butyl-3-methylpyridin-1-ium bis((trifluoromethyl)sulfonyl)amide (CAS 344790-86-9)
- 1-(4-Chloro-3-methoxyphenyl)cyclopropan-1-ol (CAS 1783611-67-5)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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