2-amino-3-(methylsulfanyl)propanoic acid CAS 7728-98-5
| CAS No. | 7728-98-5 |
| Molecular Formula | C4H9NO2S |
| Molecular Weight | 135.18 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 2-amino-3-(methylsulfanyl)propanoic acid.
2-amino-3-(methylsulfanyl)propanoic acid (CAS 7728-98-5) is a high-purity analytical reference standard with the molecular formula C4H9NO2S and a molecular weight of 135.18 g/mol.
2-amino-3-(methylsulfanyl)propanoic acid (C4H9NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C4H9NO2S |
| Molecular Weight | 135.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related amino Standards
- (2S)-2-amino-2-methyl-3-sulfanyl-propanoic acid (CAS 239101-34-9)
- (R)-2-Amino-3-mercapto-2-methylpropanoic acid (CAS 22681-73-8)
- (R)-2-Amino-3-mercapto-2-methylpropanoic acid (CAS 441317-73-3)
- 2-amino-4-sulfanylbutanoic acid (CAS 454-28-4)
- 3-Amino-4-sulfanylbutanoic acid (CAS 21100-02-7)
- (R)-2-Amino-3-mercaptopropanehydrazide (CAS 58100-26-8)
- 2-Amino-3-mercaptopropanehydrazide (CAS 70470-68-7)
- 2-Amino-6,7-dihydro-5H-cyclopenta[d]pyrimidine (CAS 108990-72-3)
Recommended Standards
- 2-((2-Mercaptoethyl)amino)acetic acid (CAS 3724-83-2)
- 2-((2-Hydroxyethyl)thio)acetamide (CAS 20101-84-2)
- 2-Methyl-2-propene-1-sulfonamide (CAS 39222-55-4)
- 2-((2-Aminoethyl)thio)acetic acid (CAS 3335-52-2)
- 4-(Benzo[d][1,3]dioxol-5-ylmethyl)-3-methylisoxazol-5(2H)-one (CAS 128156-32-1)
- 2-Ethyl-5-oxo-5,6,7,8-tetrahydroimidazo[1,5-c]pyrimidin-2-ium iodide (CAS 615578-62-6)
- 2-{3-methyl-1H-pyrazolo[3,4-b]pyridin-1-yl}acetic acid (CAS 937605-63-5)
- 4-(4-Chlorophenyl)-2-((2-(diethylamino)ethyl)amino)-4-oxobutanoic acid (CAS 1026755-23-6)
- N-1H-Imidazol-2-ylacetamide (CAS 52737-49-2)
- 2-((1h-Benzo[4,5]imidazo[2,1-c][1,2,4]triazol-3-yl)thio)acetic acid (CAS 511239-00-2)
- 6-Methyl-3-(1H-pyrazol-5-yl)pyridin-2(1H)-one (CAS 400077-45-4)
- 2-Benzamido-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylic acid (CAS 333774-32-6)
- 4-Chloro-5-methoxy-1-methyl-1H-indole-2-carboxylic acid (CAS 2092668-02-3)
- Peptide Impurity 12 (CAS CATO-CPTD788812)
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