2-(4-Nitrophenyl)pentanoic acid CAS 110728-99-9
| CAS No. | 110728-99-9 |
| Molecular Formula | C11H13NO4 |
| Molecular Weight | 223.23 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.
2-(4-Nitrophenyl)pentanoic acid (CAS 110728-99-9) is a high-purity analytical reference standard with the molecular formula C11H13NO4 and a molecular weight of 223.23 g/mol.
2-(4-Nitrophenyl)pentanoic acid (C11H13NO4) contains an amino-acid-derived structure, 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), 2-(4-Nitrophenyl)pentanoic 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 | C11H13NO4 |
| Molecular Weight | 223.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 1 |
Related Nitrophenyl Standards
- 2-(4-Methyl-3-nitrophenyl)-1,3-dioxane (CAS 1212060-78-0)
- 2-[(4-nitrophenyl)methyl]butanoic acid (CAS 1248983-13-2)
- 2-Methyl-4-(2-nitrophenyl)butanoic acid (CAS 1343120-59-1)
- 4-Nitrophenyl Pentanoate (CAS 1956-07-6)
- 1-(2-Nitrophenyl)-3-(propan-2-yl)urea (CAS 347907-99-7)
- 1-(4-Nitrophenyl)-3-(propan-2-yl)urea (CAS 70826-97-0)
- 3-Methyl-2-(4-nitrophenyl)butanoic acid (CAS 80607-80-3)
- 3-Methyl-3-(4-nitrophenyl)butanoic acid (CAS 42288-06-2)
Recommended Standards
- 2-(Benzo[d][1,3]dioxol-5-yl)-2-(dimethylamino)acetic acid (CAS 1103977-07-6)
- 2-(4-Hydroxypiperidin-1-yl)pyrimidine-5-carboxylic acid (CAS 1116339-69-5)
- 4-(2-Methoxy-5-nitrophenyl)butan-2-one (CAS 1099653-17-4)
- N,N'-(1,3,5-Triazine-2,4-diyl)bis(N-methylacetamide) (CAS 111829-52-8)
- 2-((1-(1h-Pyrazol-1-yl)propan-2-yl)amino)-N-cyclopropylacetamide (CAS 1248298-33-0)
- Ethyl 2-amino-3-(pyrrolidin-1-yl)propanoate (CAS 1247673-39-7)
- Ethyl 4-chloro-7-(trifluoromethyl)quinoline-3-carboxylate (CAS 21168-42-3)
- 4-(Methylamino)quinazoline-6-carbaldehyde (CAS 648449-04-1)
- N-(1-benzhydryl-3-(1,1-difluoro-2-hydroxyethyl)azetidin-3-yl)-2-methylpropane-2-sulfinamide (CAS 1263296-87-2)
- Dibenzofuran-2-carbonitrile (CAS 20927-96-2)
- 3-(2-Aminoethoxy)-N-isopropylbenzamide (CAS 1017667-91-2)
- 6-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 425702-91-6)
- 1H-Oxazolo[3,4-a]pyridine-1,5(3H)-dione (CAS 61327-56-8)
- CBP501 Affinity Peptide trifluoroacetate salt (CAS 1351804-17-5)
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