(S)-2-Amino-4-(aminooxy)butanoic acid CAS 496-93-5
| CAS No. | 496-93-5 |
| Molecular Formula | C4H10N2O3 |
| Molecular Weight | 134.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(S)-2-Amino-4-(aminooxy)butanoic acid (CAS 496-93-5), molecular formula C4H10N2O3 and molecular weight 134.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, (S)-2-Amino-4-(aminooxy)butanoic acid is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 134.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C4H10N2O3 |
| Molecular Weight | 134.13 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) | 1.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related S Standards
- O-amino-D-homoserine (CAS 128395-79-9)
- 2-Amino-4-(aminooxy)butanoic acid (CAS 15985-61-2)
- 2-Amino-5-hydroxybenzonitrile (CAS 116423-58-6)
- 3-Amino-5-hydroxybenzonitrile (CAS 1243444-99-6)
- 5-Amino-6-methylpyrazine-2-carbonitrile (CAS 1374652-05-7)
- 7-Amino-[1,2,4]triazolo[4,3-a]pyridine (CAS 1379186-04-5)
- 7-Amino-[1,2,4]triazolo[1,5-a]pyridine (CAS 1396312-30-3)
- 3-Amino-4-hydroxybenzonitrile (CAS 14543-43-2)
Recommended Standards
- (S)-2,3-Dihydroxy-3-methylbutanoic acid (CAS 63903-90-2)
- 1,4-Anhydro-D-xylitol (CAS 53448-53-6)
- (R)-Methyl 3,4-dihydroxybutanoate (CAS 88246-12-2)
- 1,5-Anhydro-D-xylitol (CAS 39102-78-8)
- 4-Bromophenyl propionate (CAS 23600-77-3)
- N-Cbz-glycine Methyl Ester (CAS 1212-53-9)
- 1-(3,5-Dichlorophenyl)-3-(3-fluorophenyl)propan-1-one (CAS 898767-65-2)
- N-Methyl-3-(4-methyl-1-piperidinyl)-propanamide oxalate (CAS 1785763-77-0)
- 1,7-Bis(4-bromophenyl)heptane (CAS 140389-09-9)
- Diethyl 2-(1-(1H-pyrrol-1-yl)cyclopentane-1-carbonyl)malonate (CAS 2231674-58-9)
- Methyl 2-chloro-6-cyclopropylpyrimidine-4-carboxylate (CAS 1175925-40-2)
- 1,10-Phenanthroline hydrochloride (CAS 3829-86-5)
- Ethyl 3-(2-chloro-6-fluorophenyl)-2-[3-(4-chlorophenyl)pyrazolo[1,5-a]pyrimidin-7-yl]propanoate (CAS 477860-54-1)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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