7-Nitronaphthalen-1-ol CAS 19256-82-7
| CAS No. | 19256-82-7 |
| Molecular Formula | C10H7NO3 |
| Molecular Weight | 189.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7-Nitronaphthalen-1-ol 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.
7-Nitronaphthalen-1-ol (CAS 19256-82-7) is a high-purity analytical reference standard with the molecular formula C10H7NO3 and a molecular weight of 189.17 g/mol.
7-Nitronaphthalen-1-ol (C10H7NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
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 | 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.) | 1962 |
| Nitrogen Atoms | 1 |
Related Nitronaphthalen Standards
- 1-Nitronaphthalen-2-ol (CAS 550-60-7)
- 3-Nitronaphthalen-2-ol (CAS 32361-60-7)
- 4-Nitronaphthalen-2-ol (CAS 38396-08-6)
- 6-Nitronaphthalen-2-ol (CAS 38397-07-8)
- 7-Nitronaphthalen-2-ol (CAS 38397-08-9)
- 3-Nitronaphthalen-2-amine (CAS 13115-28-1)
- 1-Nitronaphthalen-2-amine (CAS 606-57-5)
- 3-Nitronaphthalen-1-amine (CAS 3229-86-5)
Recommended Standards
- 3-Nitro-1-naphthalenol, 97% (CAS 19256-80-5)
- 7-Nitroisoquinolin-4-amine (CAS 1936476-62-8)
- N-Acetyl-D-glutamic Acid (CAS 19146-55-5)
- 5-Cyano-2,3-dihydrobenzofuran-2-carboxylic acid (CAS 194163-38-7)
- Methyl (S)-2-benzamido-3-(4-hydroxy-3-methoxyphenyl)propanoate (CAS 51593-52-3)
- 3-(5-bromopyridin-3-yl)prop-2-en-1-ol (CAS 145743-87-9)
- 2,2-Dimethyl-7-(4-nitrophenoxy)-2,3-dihydrobenzofuran (CAS 1023875-60-6)
- 2-(((1R,2R)-2-Fluorocyclopropyl)sulfonyl)benzo[d]thiazole (CAS 2375924-13-1)
- 3,5-Difluorothioanisole (CAS 54378-77-7)
- Isoquinolin-3-ylmethanol (CAS 76884-34-9)
- N-(2-Aminophenyl)-4-((4-chloro-1H-indazol-1-yl)methyl)benzamide (CAS 920315-01-1)
- N-Acetyl-2-bromo-4,5-dichloroaniline (CAS 1940-31-4)
- 4,6-Dichloro-3H-[1,2,3]triazolo[4,5-c]pyridine (CAS 501358-54-9)
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