4-Amino-2-naphthoic acid CAS 5773-98-8
| CAS No. | 5773-98-8 |
| Molecular Formula | C11H9NO2 |
| Molecular Weight | 187.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Amino-2-naphthoic acid 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.
4-Amino-2-naphthoic acid (CAS 5773-98-8) is a high-purity analytical reference standard with the molecular formula C11H9NO2 and a molecular weight of 187.19 g/mol.
4-Amino-2-naphthoic acid (C11H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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. 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), 4-Amino-2-naphthoic acid 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 | C11H9NO2 |
| Molecular Weight | 187.19 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Amino Standards
- 5-Amino-2-naphthoic Acid (CAS 100184-66-5)
- 2-Amino-1-(3,4-difluorophenyl)propan-1-ol (CAS 1038241-65-4)
- 2-Amino-1-(2,6-difluorophenyl)propan-1-ol (CAS 1038262-77-9)
- 2-Amino-2-(2,4-difluorophenyl)propan-1-ol (CAS 1043499-66-6)
- 3-Amino-1-(3,4-difluorophenyl)propan-1-ol (CAS 1089351-42-7)
- 7-Amino-1-naphthoic acid (CAS 116530-10-0)
- 2-Amino-2-(2,6-difluorophenyl)propan-1-ol (CAS 1178174-38-3)
- (r)-2-Amino-2-(2,6-difluoro-3-methylphenyl)ethan-1-ol (CAS 1213970-49-0)
Recommended Standards
- 4-Amino-1-naphthoic acid (CAS 32018-87-4)
- 4-Benzylidene-2-methyl-2-oxazolin-5-one (CAS 881-90-3)
- 4-Acetylisoquinolin-1(2H)-one (CAS 87275-00-1)
- 4-Ethylidene-2-phenyloxazol-5(4H)-one (CAS 37791-41-6)
- (R)-2-(2-bromobenzyl)-3-((tert-butoxycarbonyl)amino)propanoic acid (CAS 1260611-28-6)
- 4-Bromo-1-methyl-2-phenyl-5-((pyridin-2-ylthio)methyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 1024324-23-9)
- Phenyl acridine-9-carboxylate (CAS 109392-90-7)
- (2-(Prop-1-yn-1-ylsulfonyl)ethyl)benzene (CAS 25558-04-7)
- (6-Bromo-2-chloro-3-methoxyphenyl)boronic acid (CAS 957062-55-4)
- N-(3-Methylbutan-2-yl)piperidine-4-carboxamide (CAS 1038300-20-7)
- 4-(3-(((Tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-1-yl)-3-iodopyridine (CAS 1203498-95-6)
- tert-Butyl 4-(2-chloropyridin-4-yloxy)naphthalen-1-ylcarbamate (CAS 1562519-39-4)
- Ethyl 4,5-dimethylfuran-2-carboxylate (CAS 119155-04-3)
- Angiotensin II Antipeptide (CAS 121379-63-3)
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