(R)-2-amino-3-(benzylthio)-3-methylbutanoic acid CAS 54536-38-8
| CAS No. | 54536-38-8 |
| Molecular Formula | C12H17NO2S |
| Molecular Weight | 239.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (R)-2-amino-3-(benzylthio)-3-methylbutanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 239.33 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.
(R)-2-amino-3-(benzylthio)-3-methylbutanoic acid (CAS 54536-38-8), molecular formula C12H17NO2S and molecular weight 239.33 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C12H17NO2S |
| Molecular Weight | 239.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- (E)-4-Methyl-N-(3-methylbutylidene)benzenesulfonamide (CAS 260975-32-4)
- (S)-2-Amino-3-(benzylthio)-3-methylbutanoic acid (CAS 54536-37-7)
- (2S)-2-(1-Methylethyl)-1-[(4-methylphenyl)sulfonyl]aziridine (CAS 62596-65-0)
- 1-((5-Methylthiophen-2-yl)methyl)piperidine-3-carboxylic acid (CAS 896052-07-6)
- methyl N-(2-amino-1,2-dicyanoeth-1-en-1-yl)methanecarboximidate (CAS 123060-28-6)
- Ethyl (3R,4R)-4-hydroxypyrrolidine-3-carboxylate (CAS 752936-83-7)
- di-tert-butyl but-2-enedioate (CAS 120515-31-3)
- 1-(2,2-Dimethoxy-ethoxy)-3-methyl-benzene (CAS 864684-72-0)
- Barium Diphenylamine-4-Sulfonate (CAS 6211-24-1)
- (3R,4R)-4-Methyl-5-oxopyrrolidine-3-carboxylic acid (CAS 1426408-37-8)
- 5-Bromo-4-methyl-2-(3-methylpiperidin-1-yl)pyridine (CAS 1220027-77-9)
- Mal-amido-PEG12-propionic Acid (CAS 871133-36-7)
- 4-(3-Chloro-4-methylphenyl)-5-((4-methoxyphenoxy)methyl)-4H-1,2,4-triazole-3-thiol (CAS 723332-63-6)
- [D-His1]-Semaglutide (CAS CATO-C4X-2226127)
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