(S)-3-benzamido-4-methoxy-4-oxobutanoic acid CAS 82933-21-9
| CAS No. | 82933-21-9 |
| Molecular Formula | C12H13NO5 |
| Molecular Weight | 251.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H13NO5, (S)-3-benzamido-4-methoxy-4-oxobutanoic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
(S)-3-benzamido-4-methoxy-4-oxobutanoic acid (CAS 82933-21-9), molecular formula C12H13NO5 and molecular weight 251.24 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (S)-3-benzamido-4-methoxy-4-oxobutanoic 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 | C12H13NO5 |
| Molecular Weight | 251.24 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, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 1 |
Related S Standards
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- Methyl 2-benzamido-3-(dimethylamino)acrylate (CAS 125008-68-6)
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Recommended Standards
- (S)-2-(2-Phenylacetamido)succinic acid (CAS 2752-32-1)
- (Z)-4-((2,5-dimethoxyphenyl)amino)-4-oxobut-2-enoic acid (CAS 71603-05-9)
- (S)-(-)-3-(Benzyloxycarbonyl)-4-oxazolidinecarboxylic acid (CAS 97534-82-2)
- [(Benzo[1,3]dioxole-5-carbonyl)-amino]-acetic acid ethyl ester (CAS 76208-96-3)
- 6-Fluoro-2-azaspiro[4.5]decan-1-one (CAS 2393918-57-3)
- 1-(2-Methanesulfonylethyl)-1h-pyrazole-4-carbaldehyde (CAS 1341130-99-1)
- 2-(6-Ethyl-1H-indol-3-yl)acetic acid (CAS 52531-21-2)
- 5-Cyclopropoxy-4-iodo-N-methylpicolinamide (CAS 1243469-65-9)
- 2-Amino-6-ethylbenzamide (CAS 34934-07-1)
- 2-[(4-Fluorobenzyl)amino]-1-butanol hydrochloride (CAS 1048673-59-1)
- 2-Chloro-6-(difluoromethyl)benzo[d]oxazole (CAS 1804411-82-2)
- 2-(Boc-amino)-2-phenylethylamine Hydrochloride (CAS 1253955-71-3)
- 2-(Difluoromethyl)benzo[d]oxazol-5-amine (CAS 1039961-21-1)
- Gastric Inhibitory Polypeptide (6-30) amide (human) (CAS 1139691-72-7)
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