Fmoc-β-Ala-β-Ala-OH CAS 855316-46-0
| CAS No. | 855316-46-0 |
| Molecular Formula | C21H22N2O5 |
| Molecular Weight | 382.41 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-β-Ala-β-Ala-OH.
Fmoc-β-Ala-β-Ala-OH (CAS 855316-46-0), molecular formula C21H22N2O5 and molecular weight 382.41 g/mol, is a CATO reference standard with documented purity and traceability.
Fmoc-β-Ala-β-Ala-OH (C21H22N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C21H22N2O5 |
| Molecular Weight | 382.41 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.) | 1987 |
| Nitrogen Atoms | 2 |
Related Fmoc Standards
- Fmoc-N-Me-D-Gln-OH (CAS 1071815-00-3)
- Fmoc-N,N-dimethyl-L-Asparagine (CAS 138585-02-1)
- Fmoc-D-Dab(Ac)-OH (CAS 2044709-82-0)
- Fmoc-β-Ala-D-Ala-OH (CAS CATO-CPTD788354)
- Fmoc-D-Ala-D-Ala-OH (CAS CATO-CPTD788371)
- Fmoc-β-Ala-Ala-OH (CAS 850324-83-3)
- Fmoc-L-Ala-L-Ala-OH (CAS 87512-31-0)
- Fmoc-D-Ala-D-Ala-OH (CAS 620964-45-6)
Recommended Standards
- Acetyl Tripeptide-1 (CAS 350595-76-5)
- Fmoc-β-Ala-D-Ala-OH (CAS 2171147-38-7)
- GDC-0326, >98% (HPLC) (CAS 1282514-88-8)
- Enarodustat Impurity 19 (CAS CATO-C4X-322819)
- 2-(2,2-Difluoroethoxy)-6-methylaniline (CAS 1184255-71-7)
- 4-(Aminomethyl)-N,N-dimethyltetrahydro-2H-pyran-4-amine dihydrochloride (CAS 1158792-81-4)
- 3-[(2-Chloro-6-fluorophenyl)methyl]-4-hydroxy-1-[2-(pyridin-2-yl)ethyl]-1,2-dihydropyridin-2-one (CAS 477860-56-3)
- 1-Methyl-4-(2,2,2-trifluoro-1-methyl-ethyl)benzene (CAS 1204295-78-2)
- (S)-Benzyl 4-ethyl-5-oxooxazolidine-3-carboxylate (CAS 95656-94-3)
- Methyl 4-(2-bromoethoxy)-3-chlorobenzoate (CAS 205106-54-3)
- 3-Bromo-1-(2-chlorophenyl)piperidin-2-one (CAS 1341530-92-4)
- {bicyclo[2.2.1]hept-5-en-2-ylmethyl}(propyl)amine (CAS 22441-54-9)
- 5-Phenylspiro[2.3]hexane-5-carboxylic acid (CAS 1482397-94-3)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
Why CATO?
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