Fmoc-4-aminooxanilic acid CAS 186320-17-2
| CAS No. | 186320-17-2 |
| Molecular Formula | C23H18N2O5 |
| Molecular Weight | 402.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Fmoc-4-aminooxanilic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 402.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Fmoc-4-aminooxanilic acid (CAS 186320-17-2), molecular formula C23H18N2O5 and molecular weight 402.40 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C23H18N2O5 |
| Molecular Weight | 402.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Nitrogen Atoms | 2 |
Related Fmoc Standards
- Fmoc-4-amino-Phe-OH (CAS 95753-56-3)
- Fmoc-(S)-2-amino-4-(3-pyridyl)butyric acid (CAS 1260592-33-3)
- Fmoc-(S)-2-amino-4-(2-pyridyl)butyric acid (CAS 1260601-08-8)
- Fmoc-(R)-3-amino-4-(3-pyridyl)-butyric acid (CAS 269396-66-9)
- Fmoc-(R)-3-amino-4-(4-pyridyl)-butyric acid (CAS 269396-69-2)
- Fmoc-L-Phe(3-NH2)-OH (CAS 223581-75-7)
- Fmoc-N-Me-3-(4-py)-L-Ala (CAS 2381854-90-4)
- Fmoc-N-Me-3-(4-Pyridyl)-D-alanine (CAS 2243125-97-3)
Recommended Standards
- Dimethyl (R)-2,2'-dihydroxy-[1,1'-binaphthalene]-3,3'-dicarboxylate (CAS 18531-91-4)
- (1-hydroxyhexadecane-1,1-diyl)diphosphonic acid (CAS 2809-24-7)
- Thalidomide-O-amido-C4-NH2 (CAS 1799711-24-2)
- (2S,2a1S,4R,5AS)-5a-hydroxy-2-methyl-4-(4-oxoquinazolin-3(4H)-yl)-2a1,4,5,5a-tetrahydro-1H-2a,9b-diazacyclopenta[jk]fluorene-1,3(2H)-dione (CAS 918659-56-0)
- 1-Benzyl-1,2,3,4-tetrahydroisoquinoline hydrochloride (CAS 155413-72-2)
- N-(4-(4-Cyanophenyl)thiazol-2-yl)benzamide (CAS 392239-24-6)
- 1-Benzyl-4-(3-chlorophenyl)-3-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 860786-43-2)
- 1-Chloro-2-isothiocyanato-3,5-dimethylbenzene (CAS 871909-88-5)
- tert-butyl rel-(3aR,5r,6aS)-5-methylsulfonyloxy-3,3a,4,5,6,6a-hexahydro-1H-cyclopenta[c]pyrrole-2-carboxylate (CAS 912563-48-5)
- 2-((4-(tert-Butyl)phenyl)thio)quinazolin-4(3H)-one (CAS 6956-64-5)
- 2-(2-Methoxy-4-propionylphenoxy)acetic acid (CAS 22637-50-9)
- 2-(Bromomethyl)-5-chloro-4-(difluoromethyl)-3-nitropyridine (CAS 1806895-18-0)
- 5-(3-fluoropyridin-2-yl)furan-2-carbaldehyde (CAS 1803610-02-7)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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