(3S)-4-Fmoc-1-carboxymethyl-3-isobutyl-piperazin-2-one CAS 959581-81-8
| CAS No. | 959581-81-8 |
| Molecular Formula | C25H28N2O5 |
| Molecular Weight | 436.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (3S)-4-Fmoc-1-carboxymethyl-3-isobutyl-piperazin-2-one (C25H28N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 436.50 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies (3S)-4-Fmoc-1-carboxymethyl-3-isobutyl-piperazin-2-one (CAS 959581-81-8), a certified reference material (molecular formula C25H28N2O5, MW 436.50 g/mol) for analytical method development and quality control.
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 | C25H28N2O5 |
| Molecular Weight | 436.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related S Standards
- Fmoc-Lys(Crotonyl)-OH (CAS 1451046-72-2)
- Fmoc-Asn(Dmcp)-OH (CAS 172947-19-2)
- Fmoc-5-oxo-5-(piperidin-1-yl)-L-Norvaline (CAS 2559759-55-4)
- Fmoc-Ala(β-1-Ac-Piperidine-4-yl)-OH (CAS 2349997-96-0)
- Fmoc-Val-Pro-OH (CAS 109425-49-2)
- Fmoc-D-Val-OSu (CAS 1342820-49-8)
- Fmoc-Val-OSu (CAS 130878-68-1)
- N-Fmoc-N-methyl-4-chloro-L-phenylalanine (CAS 1217716-50-1)
Recommended Standards
- (2S,3S,4S,5S,6R)-2-methoxy-6-((trityloxy)methyl)tetrahydro-2H-pyran-3,4,5-triol (CAS 20231-36-1)
- (E)-1-(4-(benzyloxy)-2-hydroxyphenyl)-3-(4-(benzyloxy)phenyl)prop-2-en-1-one (CAS 928212-73-1)
- (2S)-5-Benzamido-2-methyl-4-oxo-1-(6-phenylhexanoyl)pyrrolidine-2-carboxylic acid (CAS 83148-65-6)
- (S)-2-((S)-2-(((Benzyloxy)carbonyl)amino)-4-methylpentanamido)-4-(tert-butoxy)-4-oxobutanoic acid (CAS 232278-49-8)
- 5-(4-(4-Ethoxybenzoyl)piperazin-1-yl)-2-(thiophen-2-yl)oxazole-4-carbonitrile (CAS 946200-76-6)
- Potassium (S)-trifluoro((3-methylpiperidin-1-yl)methyl)borate (CAS 2854339-29-8)
- Dimethyl (2-(4-fluorophenyl)-2-oxoethyl)phosphonite (CAS 1956386-22-3)
- Furano(2’’，3’’：7，6)-4’-hydroxyflavanone (CAS 1454619-70-5)
- 3-Chloro-5-cyclopropoxy-2-fluoropyridine (CAS 1243404-92-3)
- 1-(2-(Diethylamino)ethyl)-4-(4-ethoxybenzoyl)-3-hydroxy-5-(pyridin-2-yl)-1,5-dihydro-2H-pyrrol-2-one (CAS 618877-91-1)
- 4-((1E,3E)-4-Phenylbuta-1,3-dien-1-yl)phenol (CAS 1206103-27-6)
- 3-(4-Amino-5-mercapto-4H-1,2,4-triazol-3-yl)phenol (CAS 223919-21-9)
- 2,3-Difluoro-5-(trimethylsilyl)benzoic acid (CAS 518070-18-3)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com