Fmoc-(R)-3-amino-5-hexynoic acid CAS 332064-94-5
| CAS No. | 332064-94-5 |
| Molecular Formula | C21H19NO4 |
| Molecular Weight | 349.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Fmoc-(R)-3-amino-5-hexynoic acid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Fmoc-(R)-3-amino-5-hexynoic acid (CAS 332064-94-5), molecular formula C21H19NO4 and molecular weight 349.38 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Fmoc-(R)-3-amino-5-hexynoic acid (C21H19NO4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Fmoc-(R)-3-amino-5-hexynoic 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 | C21H19NO4 |
| Molecular Weight | 349.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-(<I>R</I>)-propargyl-Ala-OH (CAS 1198791-65-9)
- Fmoc-S-3-amino-5-hexynic acid (CAS 1217669-02-7)
- Fmoc-D-HomoGly(Propargyl)-OH (CAS 1234692-66-0)
- Fmoc-(r,s)-3,4-cis-methanoproline (CAS 1820598-59-1)
- Fmoc-(S)-2-aminohex-4-ynoic acid (CAS 859841-96-6)
- Fmoc-L-homopropargylglycine (CAS 942518-21-0)
- N-Fmoc-N-methyl-(S)-2- propargylglycine (CAS 2550906-64-2)
- Fmoc-α-Me-Gly(Propargyl)-OH (CAS 1198791-58-0)
Recommended Standards
- Ethyl 5-(2,6-dimethylphenoxy)-3-phenyl-1,2,4-triazine-6-carboxylate (CAS 338957-41-8)
- Ethyl 3-((6-(4-methoxyphenyl)pyrimidin-4-yl)amino)benzoate (CAS 920528-61-6)
- Ethyl 2-(7-ethyl-6-oxohexahydro-1H-pyrazino[1,2-c]pyrimidin-2(6H)-yl)acetate (CAS 56926-08-0)
- H-DL-Ser(tBu)-OMe.HCl (CAS 65365-15-3)
- Boc-N-Me-Asp(OBzl)-OH (CAS 141408-45-9)
- (3-Fluorotetrahydro-2H-pyran-3-yl)methanamine (CAS 1557978-39-8)
- 3,4-Dibromo-1-phenylpyrrolidine-2,5-dione (CAS 58879-90-6)
- (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-ethylpentanoic acid (CAS 1310680-36-4)
- 1-(4-(tert-Butyl)phenyl)-3-(4-methoxyphenyl)propane-1,3-diol (CAS 955359-35-0)
- 3-Amino-4-phenylthiazole-2(3H)-thione (CAS 5316-81-4)
- Avibactam Impurity 121 (CAS CATO-C4X-1348121)
- 3,4-Dichloro-2-methylfluorobenzene (CAS 890524-58-0)
- 5-Chloro-2-methoxy-N-(2-methoxyethyl)-4-methylbenzenesulfonamide (CAS 1087640-21-8)
- Vancomycin Hexapeptide (CAS 115236-65-2)
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