(4R)-4-Fluoro-L-glutamine CAS 238418-71-8
| CAS No. | 238418-71-8 |
| Molecular Formula | C5H9FN2O3 |
| Molecular Weight | 164.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (4R)-4-Fluoro-L-glutamine (C5H9FN2O3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 164.13 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
(4R)-4-Fluoro-L-glutamine (CAS 238418-71-8), molecular formula C5H9FN2O3 and molecular weight 164.13 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 | C5H9FN2O3 |
| Molecular Weight | 164.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 3-Ethynyl-4-fluorobenzoic acid (CAS 1864748-42-4)
- (S)-Dimethyl 2-fluorosuccinate (CAS 76003-47-9)
- 5,5,5-Trifluoro-4-hydroxy-4-(1-methyl-1h-imidazol-2-yl)pentan-2-one (CAS 930414-73-6)
- 1-Benzyl-N-(4-chlorophenyl)-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxamide (CAS 338412-47-8)
- Ethylidenetriphenyl-lambda5-phosphane (CAS 1754-88-7)
- 5-(2-Phenylbenzo[d]oxazol-5-yl)-1,3,4-oxadiazol-2-amine (CAS 1706464-26-7)
- 4-((4-Methoxypiperidin-1-yl)methyl)benzoic acid hydrochloride (CAS 1193389-73-9)
- 2-Phenyl-4,5,6,7-tetrahydro-1,3-benzothiazol-7-ol (CAS 1333710-30-7)
- 3-Methyl-4-propoxyaniline (CAS 112056-20-9)
- Di(Aziridin-1-yl)phosphinothioic Chloride (CAS 62679-38-3)
- Hexarelin(2-6)-OH·TFA (CAS CATO-C4X-28913)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
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