(S)-(Pyrrolidin-3-yloxy)-acetic acid methyl ester tosylate CAS 1965314-75-3
| CAS No. | 1965314-75-3 |
| Molecular Formula | C7H8O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H8O3SC7H13NO3, (S)-(Pyrrolidin-3-yloxy)-acetic acid methyl ester tosylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 331.38 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.
CATO supplies (S)-(Pyrrolidin-3-yloxy)-acetic acid methyl ester tosylate (CAS 1965314-75-3), a certified reference material (molecular formula C7H8O3SC7H13NO3, MW 331.38 g/mol) for analytical method development and quality control.
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.
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 | C7H8O3S C7H13NO3 |
| Molecular Weight | 331.38 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-(5,6-Dibromo-1,3-dioxooctahydro-2H-4,7-methanoisoindol-2-yl)benzoic acid (CAS 101690-99-7)
- 1-(3-Bromopropoxy)-3,5-dimethylbenzene (CAS 3245-53-2)
- N-(4-([1,2,4]Triazolo[4,3-b]pyridazin-6-yl)phenyl)-4-ethoxybenzamide (CAS 894066-77-4)
- (S)-2-Amino-N-(3,4-dichlorobenzyl)-N-methylpropanamide (CAS 1307482-02-5)
- Ethyl 3-(1-aminoethyl)-1h-1,2,4-triazole-5-carboxylate (CAS 1520637-48-2)
- N-(4-chlorophenyl)-1-((4-chlorophenyl)sulfonyl)pyrrolidine-2-carboxamide (CAS 317377-78-9)
- 4,5-Dihydroxy-6-(methoxycarbonyl)pyrimidine-2-carboxylic acid (CAS 518047-30-8)
- (4S,5R)-Methyl 5-methyl-2-oxooxazolidine-4-carboxylate (CAS 153547-44-5)
- Cyclobutyl(phenyl)methanamine (CAS 5244-84-8)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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