4-Oxo-4-(pyrimidin-2-ylamino)but-2-enoic acid CAS 42574-73-2
| CAS No. | 42574-73-2 |
| Molecular Formula | C8H7N3O3 |
| Molecular Weight | 193.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Oxo-4-(pyrimidin-2-ylamino)but-2-enoic acid.
CATO supplies 4-Oxo-4-(pyrimidin-2-ylamino)but-2-enoic acid (CAS 42574-73-2), a certified reference material (molecular formula C8H7N3O3, MW 193.16 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H7N3O3, 4-Oxo-4-(pyrimidin-2-ylamino)but-2-enoic 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 193.16 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C8H7N3O3 |
| Molecular Weight | 193.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 3 |
Related Oxo Standards
- 1-(Pyrimidin-2-yl)pyrrolidine-2-carboxylic acid (CAS 1009282-26-1)
- (S)-1-(Pyrimidin-2-yl)pyrrolidine-2-carboxylic acid (CAS 1165543-55-4)
- 1-(Pyrimidin-2-yl)pyrrolidine-3-carboxylic acid (CAS 1316217-16-9)
- 4-(Pyrimidin-4-yl)pyrrolidine-3-carboxylic acid (CAS 1344221-24-4)
- (R)-1-(Pyrimidin-2-yl)pyrrolidine-2-carboxylic acid (CAS 1821832-73-8)
- (1-(Pyrimidin-2-yl)piperidin-4-yl)methanol (CAS 111247-61-1)
- 1-(Pyrimidin-2-yl)-2-(tetrahydrofuran-2-yl)ethan-1-amine (CAS 1248001-34-4)
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Recommended Standards
- 4-Nitrophenyl acrylate, 97% (CAS 2123-85-5)
- 4-Oxo-4,8-dihydropyrido[2,3-c]pyridazine-3-carboxylic acid (CAS 397310-42-8)
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- 5-((1H-1,2,3-Triazol-1-yl)methyl)furan-2-carboxylic acid (CAS 2025628-49-1)
- (E)-{[2-(4-chlorophenyl)-7-methylimidazo[1,2-a]pyridin-3-yl]methylidene}amino cyclopropanecarboxylate (CAS 478257-17-9)
- 7-Amino-4-phenethyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 1011618-38-4)
- 3-Methoxypiperidin-4-one (CAS 1220039-57-5)
- Fmoc-D-Thr-OH.H2O (CAS 1272755-74-4)
- ((3AS,4R,6S,7R,7aS)-7-acetoxy-6-(4-methoxyphenoxy)-2,2-dimethyltetrahydro-4H-[1,3]dioxolo[4,5-c]pyran-4-yl)methyl acetate (CAS 1201011-97-3)
- α,α,α',α'-Tetrabromo-p-xylene (CAS 1592-31-0)
- (S)-1-(2,4-Dichlorobenzyl)pyrrolidin-3-amine hydrochloride (CAS 2026897-02-7)
- 1-(5-Methylbenzo[d]oxazol-2-yl)guanidine (CAS 332898-09-6)
- rel-(6S,7aR)-6-Fuoro-7a-(hydroxymethyl)tetrahydro-1H-pyrrolizin-3(2H)-one-d2 (CAS 2883770-62-3)
- Fragment-[3-31]-Liraglutide (CAS CATO-C4X-199232)
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