(S)-2-((tert-butoxycarbonyl)amino)-3-(1-methyl-1H-pyrazol-4-yl)propanoic acid CAS 1997446-11-3
| CAS No. | 1997446-11-3 |
| Molecular Formula | C12H19N3O4 |
| Molecular Weight | 269.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H19N3O4, (S)-2-((tert-butoxycarbonyl)amino)-3-(1-methyl-1H-pyrazol-4-yl)propanoic 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 269.30 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)-2-((tert-butoxycarbonyl)amino)-3-(1-methyl-1H-pyrazol-4-yl)propanoic acid (CAS 1997446-11-3), molecular formula C12H19N3O4 and molecular weight 269.30 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.
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 | C12H19N3O4 |
| Molecular Weight | 269.30 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 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 3 |
Recommended Standards
- (S)-2-((1-phenylethyl)carbamoyl)benzoic acid (CAS 21752-36-3)
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- (R)-N-(2-(benzyloxy)-5-(oxiran-2-yl)phenyl)formamide (CAS 201677-57-8)
- (Z)-(Prop-2-en-1-yloxy)({1-[4-(pyrazin-2-yloxy)phenyl]ethylidene})amine (CAS 866157-17-7)
- 3-Amino-3-(4-isobutylphenyl)propan-1-ol (CAS 1270472-53-1)
- [1-phenyl-5-(trifluoromethyl)-1h-pyrazol-4-yl]methanamine (CAS 1461707-98-1)
- tert-Butyl 7-methoxy-6-nitro-3,4-dihydroisoquinoline-2(1H)-carboxylate (CAS 1390657-68-7)
- Isopropyl 2-ethoxyacetate (CAS 54063-13-7)
- Ethyl 6-(Ethylamino)pyridazine-3-carboxylate (CAS 1823915-03-2)
- N1,N1-Dimethylcyclobutane-1,3-diamine (CAS 1230100-88-5)
- 3,4,5-Trichlorophenylboronic Acid (CAS 862248-93-9)
- N-Cyclohexyl-3-methylpyridin-2-amine (CAS 88260-24-6)
- ethyl 2-propylpyrrolidine-2-carboxylate hydrochloride (CAS 1788024-58-7)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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