1-Hydroxyquinolin-2(1H)-one CAS 58-57-1
| CAS No. | 58-57-1 |
| Molecular Formula | C9H7NO2 |
| Molecular Weight | 161.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Hydroxyquinolin-2(1H)-one 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 1-Hydroxyquinolin-2(1H)-one (CAS 58-57-1), a certified reference material (molecular formula C9H7NO2, MW 161.16 g/mol) for analytical method development and quality control.
Structurally, 1-Hydroxyquinolin-2(1H)-one (C9H7NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 161.16 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 1-Hydroxyquinolin-2(1H)-one 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 | C9H7NO2 |
| Molecular Weight | 161.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Hydroxyquinolin Standards
- 5-Hydroxyquinolin-4(1H)-one (CAS 190516-68-8)
- 2-Hydroxyquinolin-4(1H)-one (CAS 70254-44-3)
- 3-Hydroxyquinolin-2(1H)-one (CAS 26386-86-7)
- 8-Hydroxyquinolin-4(1H)-one (CAS 53846-46-1)
- 2-(6-Hydroxyquinolin-3-yl)acetonitrile (CAS 1261886-31-0)
- 2-(8-Hydroxyquinolin-5-yl)acetonitrile (CAS 57434-83-0)
- 1-(7-Hydroxyquinolin-8-yl)ethan-1-one (CAS 1146298-54-5)
- 1-(8-Hydroxyquinolin-2-yl)ethanone (CAS 149003-37-2)
Recommended Standards
- 1H-Pyrrolo[3,2-c]pyridine-2-carboxamide (CAS 853685-79-7)
- 1-Methyl-1H-benzo[d][1,2,3]triazole-5-carbaldehyde, 97% (CAS 499770-67-1)
- 1H-pyrrolo[3,2-b]pyridine-2-carboxamide (CAS 853685-35-5)
- 1-Methyl-1H-imidazo[4,5-c]pyridine-2-carbaldehyde (CAS 38786-61-7)
- 3-Hydroxy-2-methyl-1-phenyl-3-(p-tolyl)propan-1-one (CAS 82105-34-8)
- 2,2-Difluoro-2-(methylsulfanyl)acetic acid (CAS 1507301-10-1)
- 8-(Trifluoromethoxy)-1,4-dioxaspiro[4.5]decane (CAS 950772-39-1)
- Perfluoroeicosane (CAS 3125-64-2)
- Butyl 4-(2-(2-mercapto-4-oxo-4,5-dihydrothiazol-5-yl)acetamido)benzoate (CAS 1142207-19-9)
- Ethyl 2-iodo-4-methoxybenzoate (CAS 1379346-81-2)
- (5-Methylpyrrolidin-2-yl)methanol (CAS 61892-97-5)
- 1,3-Bis(5-chloro-2-methylphenyl)urea (CAS 54965-12-7)
- Ethyl 6-chloro-9H-purine-9-carboxylate (CAS 18753-73-6)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
Why CATO?
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