4-Oxo-4-(prop-2-yn-1-ylamino)but-2-enoic acid CAS 671188-20-8
| CAS No. | 671188-20-8 |
| Molecular Formula | C7H7NO3 |
| Molecular Weight | 153.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Oxo-4-(prop-2-yn-1-ylamino)but-2-enoic acid (CAS 671188-20-8) is a high-purity analytical reference standard with the molecular formula C7H7NO3 and a molecular weight of 153.14 g/mol.
Based on its molecular formula C7H7NO3, 4-Oxo-4-(prop-2-yn-1-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 153.14 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Oxo-4-(prop-2-yn-1-ylamino)but-2-enoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7NO3 |
| Molecular Weight | 153.14 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, water |
| 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.) | 1985 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 1-(prop-2-en-1-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1012081-60-5)
- 4-(Prop-2-yn-1-yl)morpholine-3,5-dione (CAS 1248279-27-7)
- 4-(prop-2-yn-1-yl)morpholine-2,6-dione (CAS 1341040-62-7)
- 3-(N-Prop-2-ynylcarbamoyl)prop-2-enoic acid (CAS 1417623-59-6)
- prop-2-en-1-yl(3,3,3-trifluoropropyl)amine (CAS 1342622-65-4)
- Prop-2-yn-1-yl pyrrolidine-1-carboxylate (CAS 123477-57-6)
- 3-(Prop-2-yn-1-yl)pyrrolidine-3-carboxylic acid (CAS 1509635-31-7)
- (2S)-1-(prop-2-yn-1-yl)pyrrolidine-2-carboxylic acid (CAS 199918-49-5)
Recommended Standards
- 4-Methyl-N-nitropyridin-2-amine (CAS 33245-30-6)
- 5-(Aminomethyl)pyrimidine-2-carboxylic acid (CAS 76196-72-0)
- 4-Methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 66909-28-2)
- 5-(Hydroxymethyl)picolinic acid (CAS 39977-41-8)
- (3,5-Dichlorophenyl)difluoroacetic acid (CAS 1260762-88-6)
- (S)-(+)-5,5',6,6',7,7',8,8'-Octahydro-3,3'-di-t-butyl-1,1'-bi-2-naphthol dipotassium salt (CAS 821793-28-6)
- Ethyl 4-hydroxy-1-methyl-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxylate (CAS 77276-17-6)
- (R)-8-Fluoro-N-isopropyl-4-(3-methoxypropoxy)-6-methyl-N-(piperidin-3-yl)quinoline-2-carboxamide (CAS 1078129-57-3)
- 3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophene-2-carbohydrazide (CAS 666724-62-5)
- 2-Ethyl-6-nitro-1h-1,3-benzodiazole (CAS 5805-42-5)
- Orniplabin Preparation and Separation of Impurity 2 (CAS CATO-CPS-2605002)
- 3-Amino-2-[(3,4-difluorophenyl)methyl]propan-1-ol (CAS 1019116-70-1)
- N-nitroso-desmethyl-amitriptyline (CAS 55855-42-0)
- KALA Amphipathic Peptide (CAS 187987-64-0)
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