Fmoc-Glu-NH? CAS 288149-55-3
| CAS No. | 288149-55-3 |
| Molecular Formula | C20H20N2O5 |
| Molecular Weight | 368.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 368.39 g/mol gives Fmoc-Glu-NH? distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Fmoc-Glu-NH? (CAS 288149-55-3), molecular formula C20H20N2O5 and molecular weight 368.39 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Fmoc-Glu-NH? is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 368.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Fmoc-Glu-NH? 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 | C20H20N2O5 |
| Molecular Weight | 368.39 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.) | 2025 |
| Nitrogen Atoms | 2 |
Related Fmoc Standards
- Fmoc-L-2-amino-3-guanidinopropionic acid (CAS 1217839-93-4)
- Fmoc-N-Me-Asn (CAS 1070874-06-4)
- N-Fmoc-N'-methyl-L-asparagine (CAS 149204-93-3)
- Fmoc-D-iso-Gln (CAS 292150-20-0)
- Fmoc-N-Me-D-Asn-OH (CAS 2044709-67-1)
- Fmoc-Ala-Gly-OH (CAS 116747-54-7)
- Fmoc-β-Ala-Gly-OH (CAS 133368-47-5)
- Fmoc-D-Gln-OH (CAS 112898-00-7)
Recommended Standards
- Finerenone Impurity 59 (CAS CATO-C4X-288059)
- tert-Butyl((3-(4'-fluoro-[1,1'-biphenyl]-4-yl)isoxazol-5-yl)methyl)carbamate (CAS 1065075-48-0)
- Alogliptin Impurity 98 (CAS CATO-C4X-109998)
- Usaramine N-oxide (CAS 117020-54-9)
- cis-(4-hydroxy-cyclohexyl)-methyl-carbamic acid tert-butyl ester (CAS 561307-54-8)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrazole-3-carboxylic acid (CAS 1006962-83-9)
- 2-Phenylpyrimidine-5-carboxylic Acid (CAS 122773-97-1)
- N-((2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methyl)-N-methyl-2-(methylamino)acetamide hydrochloride (CAS 1568947-83-0)
- Methyl Calcein (CAS 25639-40-1)
- 1-Chloro-1-phenyl-propan-2-one (CAS 4773-35-7)
- Doxofylline (CAS 69975-86-6)
- 3-(M-tolyl)-3h-[1,2,3]triazolo[4,5-d]pyrimidin-7-ol (CAS 1082436-86-9)
- 4-Iodo-1-butyne (CAS 43001-25-8)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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