(S)-2-Amino-3-sulfopropanoic acid CAS 35554-98-4
| CAS No. | 35554-98-4 |
| Molecular Formula | C3H7NO5S |
| Molecular Weight | 169.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 169.16 g/mol gives (S)-2-Amino-3-sulfopropanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(S)-2-Amino-3-sulfopropanoic acid (CAS 35554-98-4), molecular formula C3H7NO5S and molecular weight 169.16 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (S)-2-Amino-3-sulfopropanoic acid (C3H7NO5S) is characterized by an amide group, a sulfone group, a carboxylic acid group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C3H7NO5S |
| Molecular Weight | 169.16 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.) | 1967 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related S Standards
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Recommended Standards
- 1-(3-Fluorophenyl)semicarbazide (CAS 57802-89-8)
- (4-Aminophenyl)dimethylphosphine oxide (CAS 737751-54-1)
- 1,4-Dihydro-2H-thieno[3,2-d][1,3]oxazine-2,4-dione (CAS 78756-28-2)
- (3-Aminophenyl)dimethylphosphine oxide (CAS 26728-38-1)
- Bromocriptine Impurity 3 (CAS 82796-58-5)
- (2S,4R)-4-(2-Bromobenzyl)pyrrolidine-2-carboxylic acid (CAS 1049978-26-8)
- 9-(1-Methyl-1H-indol-3-yl)acridine (CAS 33032-22-3)
- (βR)-β-Amino-3-chloro-4,5-dihydro-5-isoxazoleethanol (Mixture of Diastereomers) (CAS 1322622-94-5)
- 6-Bromo-2-iodo-1H-pyrrolo[3,2-b]pyridine (CAS 1260381-61-0)
- (E)-1-(3-chlorobenzyl)-3-(4-methylstyryl)urea (CAS 339278-61-4)
- Vitamin A Impurity 31 (CAS CATO-C4X-218731)
- Metoclopramide Impurity 117 (CAS CATO-C4X-1415117)
- (5-(tert-Butyl)oxazol-2-yl)methanethiol (CAS 2137560-23-5)
- Des-Ala35-Tirzepatide (CAS CATO-CPTD788939)
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