Rel-(2s,3s)-2-(1,3-dioxoisoindolin-2-yl)-3-methylpentanoic acid CAS 21844-63-3
| CAS No. | 21844-63-3 |
| Molecular Formula | C14H15NO4 |
| Molecular Weight | 261.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Rel-(2s,3s)-2-(1,3-dioxoisoindolin-2-yl)-3-methylpentanoic acid (CAS 21844-63-3), molecular formula C14H15NO4 and molecular weight 261.27 g/mol, is a CATO reference standard with documented purity and traceability.
Rel-(2s,3s)-2-(1,3-dioxoisoindolin-2-yl)-3-methylpentanoic acid (C14H15NO4) contains a nitrogen-containing heterocyclic scaffold, 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Rel-(2s,3s)-2-(1,3-dioxoisoindolin-2-yl)-3-methylpentanoic acid 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 | C14H15NO4 |
| Molecular Weight | 261.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Photo-lysine Derivative 1 (CAS 2381097-10-3)
- tert-Butyl (2-formylbenzofuran-4-yl)carbamate (CAS 503621-02-1)
- O-Acetyl-N-[(1,1-dimethylethoxy)carbonyl]-L-threonine (CAS 45214-52-6)
- tert-Butyl 2-(1,3-dioxoisoindolin-2-yl)acetate (CAS 6297-93-4)
- 2-(4-Chlorophenyl)-[1,2,4]triazolo[1,5-a]pyridin-7-amine (CAS 1896546-29-4)
- 898790-97-1 Cyclobutyl[3-(trifluoromethyl)phenyl]methanone DTXSID00642540 (CAS 898790-97-1)
- 2-((4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-ethylphenyl)acetamide (CAS 525582-84-7)
- (2-([(Cyclohexylamino)carbonyl]amino)-1,3-thiazol-4-yl)acetic acid (CAS 926238-24-6)
- 4-Pivaloylmorpholine-2-carboxylic acid (CAS 1307775-55-8)
- 3-(Pyridin-3-yl)-5-(trifluoromethyl)benzenamine (CAS 641571-00-8)
- 2-Bromo-6,6-dimethyl-4,5,6,7-tetrahydrobenzofuran-7-amine (CAS 2090116-53-1)
- N,N-Bis-boc-2-iodo-6-methyl-phenylamine (CAS 2055840-80-5)
- (E)-3-(2,3,4-Trifluorophenyl)acrylic acid (CAS 331776-45-5)
- Neuropeptide SF (human) (CAS 192387-39-6)
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