(2R-cis)--2-(Trifluoromethyl)thiazolidine-4-carboxylic acid CAS 171204-96-9
| CAS No. | 171204-96-9 |
| Molecular Formula | C5H6F3NO2S |
| Molecular Weight | 201.17 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.
(2R-cis)--2-(Trifluoromethyl)thiazolidine-4-carboxylic acid (CAS 171204-96-9), molecular formula C5H6F3NO2S and molecular weight 201.17 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, (2R-cis)--2-(Trifluoromethyl)thiazolidine-4-carboxylic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C5H6F3NO2S |
| Molecular Weight | 201.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2005 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- (S)-Methyl 2-amino-2-(2,4-difluorophenyl)acetate (CAS 1703977-01-8)
- (2s,4r)-2-(Trifluoromethyl)-1,3-thiazolidine-4-carboxylic acid (CAS 171596-05-7)
- 4-(trifluoromethyl)-1,3-thiazole-5-carboxylic acid (CAS 167548-89-2)
- Methyl 3-amino-4-(difluoromethyl)benzoate (CAS 1785425-60-6)
- 1-cyclobutyl-4-(piperidine-4-carbonyl)-1,4-diazepane (CAS 799557-73-6)
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- L-Citrulline hydrochloride (CAS 197704-69-1)
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- 1-(6-Bromopyridin-3-yl)-2,2-dimethylpropan-1-ol (CAS 139042-61-8)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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