4-Amino-4-oxobut-2-enoic acid CAS 4452-01-1
| CAS No. | 4452-01-1 |
| Molecular Formula | C4H5NO3 |
| Molecular Weight | 115.09 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-Amino-4-oxobut-2-enoic acid.
CATO supplies 4-Amino-4-oxobut-2-enoic acid (CAS 4452-01-1), a certified reference material (molecular formula C4H5NO3, MW 115.09 g/mol) for analytical method development and quality control.
Structurally, 4-Amino-4-oxobut-2-enoic acid (C4H5NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 115.09 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C4H5NO3 |
| Molecular Weight | 115.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Amino Standards
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- 3-Propyl-2-thioxo-1,3-diazaspiro[4.5]decan-4-one (CAS 364606-20-2)
- 4-Bromo-1-((1-methylcyclobutyl)methyl)-1H-pyrazole (CAS 1865071-40-4)
- N1-Benzhydryl-N1,N2-dimethylethane-1,2-diamine (CAS 103915-36-2)
- 1-(4-Methoxybenzoyl)pyrrolidine-2,5-dione (CAS 6343-26-6)
- Tau Peptide (295-309) trifluoroacetate salt (CAS 330456-46-7)
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