1-Hydroxy-9H-carbazole-3-carbaldehyde CAS 123497-84-7
| CAS No. | 123497-84-7 |
| Molecular Formula | C13H9NO2 |
| Molecular Weight | 211.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Hydroxy-9H-carbazole-3-carbaldehyde (CAS 123497-84-7), molecular formula C13H9NO2 and molecular weight 211.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-Hydroxy-9H-carbazole-3-carbaldehyde (C13H9NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 211.22 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C13H9NO2 |
| Molecular Weight | 211.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
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- 2-hydroxy-9,10-dihydroacridin-9-one (CAS 7466-73-1)
- 5-Hydroxy-N,N,1,2-tetramethyl-6-oxo-1,6-dihydropyrimidine-4-carboxamide (CAS 389130-74-9)
- N-(4-Hydroxy-6-oxo-1,6-dihydropyrimidin-2-yl)pivalamide (CAS 210686-56-9)
- 2-hydroxy-2-methyl-3-(4-methyl-2-oxo-1,2-dihydropyridin-1-yl)propanoic acid (CAS 1338977-53-9)
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Recommended Standards
- 1-methyl-1H-pyrrolo[2,3-b]quinoxaline-2-carbaldehyde (CAS 1234370-99-0)
- 2,6-Di(1-pyrazolyl)pyridine (CAS 123640-38-0)
- 1-methyl-1H-pyrrolo[2,3-b]quinoxaline-3-carbaldehyde (CAS 1226875-49-5)
- 5-Isobutyramido-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 1239753-88-8)
- 1-(4-(Trifluoromethoxy)phenyl)-1H-pyrrole (CAS 259269-58-4)
- N-(4-Methyl-2-phenylpyrimidin-5-yl)benzamide (CAS 649746-01-0)
- 2-Methoxy-n-(4-phenyl-1,3-thiazol-2-yl)acetamide (CAS 132214-37-0)
- (4-Chloro-2-methylphenyl)trimethylsilane (CAS 1314929-94-6)
- 2-(4-Hydroxy-phenyl)-benzo[de]isoquinoline-1,3-dione (CAS 6914-99-4)
- 2-(Difluoromethoxy)-4,5-difluorobenzamide (CAS 1803848-92-1)
- 2-Amino-5-fluoro-N-isopropylbenzamide (CAS 1094290-34-2)
- 2-(2-Aminophenoxy)pyridine-3-carbonitrile (CAS 926261-53-2)
- 5-(3-Chlorophenyl)-1H-indole (CAS 481630-99-3)
- Liraglutide Impurity 16 TFA Salt (CAS CATO-C4X-199216)
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