4-(Hydroxyamino)-4-oxobutanoic acid CAS 4743-99-1
| CAS No. | 4743-99-1 |
| Molecular Formula | C4H7NO4 |
| Molecular Weight | 133.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-(Hydroxyamino)-4-oxobutanoic 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.
4-(Hydroxyamino)-4-oxobutanoic acid (CAS 4743-99-1) is a high-purity analytical reference standard with the molecular formula C4H7NO4 and a molecular weight of 133.10 g/mol.
Based on its molecular formula C4H7NO4, 4-(Hydroxyamino)-4-oxobutanoic acid contains a carbohydrate-derived structure, an amide group; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 133.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C4H7NO4 |
| Molecular Weight | 133.10 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Hydroxyamino Standards
- 2-(Hydroxyamino)benzaldehyde (CAS 147779-90-6)
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- (4-(Hydroxyamino)phenyl)methanol (CAS 99237-42-0)
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- 3-(Hydroxyamino)phenol (CAS 10603-61-9)
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Recommended Standards
- 3-Hydroxy-2-formamidopropanoic acid (CAS 57274-55-2)
- 5,5-Difluoro-1-methyl-1H-pyrrol-2(5H)-one (CAS 363152-96-9)
- 2-Amino-2-methylmalonic acid (CAS 26767-88-4)
- Aspartic Acid - Impurity I (Hydrochloride Salt) (CAS 71855-54-4)
- (S)-2-((2-Chloropyrimidin-4-yl)amino)-2-methylbutanoic acid (CAS 1417421-83-0)
- 3-Ethylhexahydropyrrolo[1,2-a]pyrazine-1,4-dione (CAS 1512702-63-4)
- Acyclovir Monophosphate (CAS 66341-16-0)
- LP-922761 (CAS 1454808-95-7)
- (E)-N-(4-(((1H-Pyrrol-2-yl)methylene)amino)phenyl)acetamide (CAS 646034-67-5)
- N-(5-Amino-2-methylphenyl)-2-isobutoxybenzamide (CAS 1020723-87-8)
- 1-Benzyl-3-methylpyrrolidin-3-amine (CAS 181114-76-1)
- 3-(2-Amino-ethyl)-5-(2,3-dichloro-benzylidene)-thiazolidine-2,4-dione (CAS 554407-63-5)
- 5-Ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazole (CAS 2223030-51-9)
- Tau Peptide (307-321) trifluoroacetate salt (CAS 330456-50-3)
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