6-Hydroxyquinoline-3-carboxylic acid CAS 1137826-05-1
| CAS No. | 1137826-05-1 |
| Molecular Formula | C10H7NO3 |
| Molecular Weight | 189.17 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.
6-Hydroxyquinoline-3-carboxylic acid (CAS 1137826-05-1), molecular formula C10H7NO3 and molecular weight 189.17 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H7NO3, 6-Hydroxyquinoline-3-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C10H7NO3 |
| Molecular Weight | 189.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 1 |
Related Hydroxyquinoline Standards
- 7-Hydroxyquinoline-4-carboxylic acid (CAS 1017969-32-2)
- 7-Hydroxyquinoline-8-carboxylic acid (CAS 1146298-53-4)
- 4-Hydroxyquinoline-7-carboxylic acid (CAS 1150618-22-6)
- 3-Hydroxyquinoline-4-carboxylic acid (CAS 118-13-8)
- 7-Hydroxyquinoline-6-carboxylic acid (CAS 1227608-04-9)
- 3-Hydroxyquinoline-6-carboxylic acid (CAS 1233244-78-4)
- 6-Hydroxyquinoline-7-carboxylic acid (CAS 1261434-11-0)
- 5-Hydroxyquinoline-4-carboxylic acid (CAS 1261462-15-0)
Recommended Standards
- 2-(2-Furyl)isonicotinic acid (CAS 1086379-95-4)
- 4-(4-Nitrophenyl)-1H-pyrazole (CAS 114474-26-9)
- 2-(1H-1,2,3-Triazol-1-yl)benzoic acid (CAS 1085458-53-2)
- 6-(1H-imidazol-1-yl)picolinic acid (CAS 1083402-25-8)
- 2-(4-Acetylphenoxy)-2-methylpropanoic acid (CAS 52179-07-4)
- N1-(3-chlorophenyl)-2-methylpropane-1,2-diamine (CAS 854650-27-4)
- 3-((2-Hydroxyethyl)thio)benzoic acid (CAS 7180-10-1)
- 7-Methyl-3-((phenethylamino)methyl)quinolin-2(1H)-one (CAS 919022-89-2)
- Methyl 2-Methyl-4-(methylsulfonyl)benzoate (CAS 875895-64-0)
- 1-((2-Cyclobutylthiazol-4-yl)methyl)-3-methylthiourea (CAS 1427022-98-7)
- 4,6-Dichloro-N-(2,2,2-trifluoroethyl)-1,3,5-triazin-2-amine (CAS 86298-37-5)
- 2-(2-Pyridyl)aniline (CAS 29528-30-1)
- N1-(4-Nitro-1H-imidazol-5-yl)ethane-1,2-diamine (CAS 573986-91-1)
- Glucagon (1-29) (CAS 16941-32-5)
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