S-(trifluoromethyl)cysteine CAS 1301738-62-4
| CAS No. | 1301738-62-4 |
| Molecular Formula | C4H6F3NO2S |
| Molecular Weight | 189.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of S-(trifluoromethyl)cysteine (C4H6F3NO2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. 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.
S-(trifluoromethyl)cysteine (CAS 1301738-62-4) is a high-purity analytical reference standard with the molecular formula C4H6F3NO2S and a molecular weight of 189.16 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), S-(trifluoromethyl)cysteine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C4H6F3NO2S |
| Molecular Weight | 189.16 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) | 1.0 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related S Standards
- 1-(Trifluoromethyl)cyclopropane-1-sulfonamide (CAS 1108658-26-9)
- s-(Trifluoromethyl)-l-cysteine (CAS 144334-57-6)
- (R)-3-(Trifluoromethyl)isothiazolidine 1,1-dioxide (CAS 2596295-10-0)
- 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetonitrile (CAS 1001500-48-6)
- (5-Methyl-2-(trifluoromethyl)phenyl)methanamine (CAS 1017779-30-4)
- 3-(Trifluoromethyl)picolinimidamide (CAS 1179533-41-5)
- 4-(Trifluoromethyl)nicotinimidamide (CAS 1256802-00-2)
- 5-(Trifluoromethyl)nicotinimidamide (CAS 1256804-56-4)
Recommended Standards
- 2-(Difluoromethoxy)-6-methoxyaniline (CAS 1261581-11-6)
- 1-(5-(Difluoromethyl)-1,2,4-oxadiazol-3-yl)cyclobutan-1-amine (CAS 1423117-23-0)
- 5-(Difluoromethoxy)-2-methoxyaniline (CAS 1256627-90-3)
- 6-(2,2-Difluoroethoxy)pyridine-2,3-diamine (CAS 1438251-11-6)
- 2,6-Lutidine hexafluorophosphate (CAS 111632-68-9)
- (3R)-3-(4-Fluoro-2-methylphenyl)piperazin-2-one (CAS 1153574-57-2)
- 2-Chloro-5-(4-(pyrrolidin-1-ylsulfonyl)phenyl)nicotinic acid (CAS 1262004-73-8)
- (2Z,2'Z)-3,3'-(1,4-Phenylene)bis(2-phenylacrylonitrile) (CAS 58393-80-9)
- 2-(Tetrahydro-2H-pyran-4-yl)thiazol-4-amine (CAS 420095-10-9)
- 5-Bromo-1H-indol-3-yl nonanoate (CAS 133950-70-6)
- 7-Methoxy-2,3-dihydroisoquinolin-4(1H)-one hydrochloride (CAS 5119-79-9)
- (E)-1-(5-methylfuran-2-yl)ethan-1-one oxime (CAS 78073-03-7)
- 3-(1,3-Dioxolan-2-yl)furan-2-sulfonyl chloride (CAS 886851-63-4)
- Semaglutide impurity 63 (CAS CATO-C4X-222663)
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