Fmoc-Asn-OH CAS 71989-16-7
| CAS No. | 71989-16-7 |
| Molecular Formula | C19H18N2O5 |
| Molecular Weight | 354.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Fmoc-Asn-OH (C19H18N2O5) 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).
Fmoc-Asn-OH (CAS 71989-16-7), molecular formula C19H18N2O5 and molecular weight 354.36 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures Fmoc-Asn-OH under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H18N2O5 |
| Molecular Weight | 354.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Fmoc Standards
- Fmoc-Gly-Gly-OH (CAS 35665-38-4)
- Fmoc-D-Asn-OH (CAS 108321-39-7)
- Fmoc-Asp-NH? (CAS 200335-40-6)
- Fmoc-L-2-amino-3-(dimethylamino)-propionic acid (CAS 587880-86-2)
- Fmoc-l-glutaminol (CAS 260450-77-9)
- Fmoc-D-Orn-OH (CAS CATO-CPTD788357)
- Fmoc-alpha-methyl-dl-valine (CAS 1016893-33-6)
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