Fmoc-N-Me-D-Ala-OH CAS 138774-92-2
| CAS No. | 138774-92-2 |
| Molecular Formula | C19H19NO4 |
| Molecular Weight | 325.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Fmoc-N-Me-D-Ala-OH.
Fmoc-N-Me-D-Ala-OH (CAS 138774-92-2) is a high-purity analytical reference standard with the molecular formula C19H19NO4 and a molecular weight of 325.36 g/mol.
Based on its molecular formula C19H19NO4, Fmoc-N-Me-D-Ala-OH contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C19H19NO4 |
| Molecular Weight | 325.36 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-Ala-OMe (CAS 146346-88-5)
- N-Fmoc-N-Methyl-beta-alanine (CAS 172965-84-3)
- Fmoc-DL-ß-aminobutyric acid (CAS 186320-18-3)
- (S)-3-(Fmoc-amino)butanoic Acid (CAS 193954-26-6)
- (R)-3-(Fmoc-amino)-2-methylpropanoic Acid (CAS 211682-15-4)
- Fmoc-Abu-OH (CAS 135112-27-5)
- Fmoc-Aib-OH (CAS 94744-50-0)
- Fmoc-D-Abu-OH (CAS 170642-27-0)
Recommended Standards
- Fmoc-N-Me-Ala-OH (CAS 84000-07-7)
- Fmoc-γ-Abu-OH (CAS 116821-47-7)
- 1-(1-([1,2,4]Triazolo[1,5-a]pyridin-6-yl)-1-hydroxypropan-2-yl)-3-(m-tolyl)urea (CAS 1043908-01-5)
- 3-(4-Ethoxyphenyl)-7-(piperazin-1-yl)-3H-[1,2,3]triazolo[4,5-d]pyrimidine (CAS 1105188-61-1)
- 2-Phenoxy-N-(pyridin-4-yl)acetamide (CAS 331434-52-7)
- 4-(Cyclopropylamino)-2-(methylthio)pyrimidine-5-carboxylic acid (CAS 1015856-32-2)
- 1-Amino-3-(2,2,2-trifluoroethyl)thiourea (CAS 1092300-87-2)
- 2,3-Dichloro-4-(difluoromethoxy)aniline (CAS 1803717-62-5)
- 926227-20-5 N-(5-Amino-2-fluorophenyl)isonicotinamide (CAS 926227-20-5)
- 2-Bromo-6-cyclopropoxy-N-methylbenzamide (CAS 1243347-82-1)
- L-Thyronine (CAS 1596-67-4)
- Ethyl 6-chloro-3-methylimidazo[1,2-b]pyridazine-2-carboxylate (CAS 215530-92-0)
- [3-(2-Fluorophenyl)-2-phenylpropyl]amine hydrochloride (CAS 1048648-82-3)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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