N-Methyl-S-trityl-L-cysteine CAS 166169-98-8
| CAS No. | 166169-98-8 |
| Molecular Formula | C23H23NO2S |
| Molecular Weight | 377.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of N-Methyl-S-trityl-L-cysteine is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
N-Methyl-S-trityl-L-cysteine (CAS 166169-98-8), molecular formula C23H23NO2S and molecular weight 377.50 g/mol, is a CATO reference standard with documented purity and traceability.
N-Methyl-S-trityl-L-cysteine (C23H23NO2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures N-Methyl-S-trityl-L-cysteine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H23NO2S |
| Molecular Weight | 377.50 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- tert-butyl (2R,4S)-2-(hydroxymethyl)-4-(p-tolylsulfonyloxy)pyrrolidine-1-carboxylate (CAS 135042-14-7)
- (3-(1H-Pyrazol-1-yl)phenyl)(7-(o-tolyl)-1,4-thiazepan-4-yl)methanone (CAS 1705509-59-6)
- tert-butyl 2-(hydroxymethyl)-4-(p-tolylsulfonyloxy)pyrrolidine-1-carboxylate (CAS 1253789-43-3)
- 2-((5-Bromo-1H-1,2,4-triazol-3-yl)difluoromethyl)-3-chloro-5-(trifluoromethyl)pyridine (CAS 1823182-89-3)
- (3-Amino-1-methyl-propyl)-carbamic acid tert-butyl ester (CAS 177489-90-6)
- (S)-1-(2,5-Difluorophenyl)-2,2-difluoroethan-1-ol (CAS 2375249-20-8)
- 1-Methyl-3-(pyridin-2-yl)-1H-pyrazole-5-carboxylic acid (CAS 334017-23-1)
- 3-Hydroxy-2-(4-isopropoxy-benzoylamino)-propionic acid (CAS 1008069-90-6)
- 2-(4-Fluorophenyl)-N-(4-methoxybenzyl)ethan-1-amine hydrochloride (CAS 436099-73-9)
- Iridium(III) bromide tetrahydrate (CAS 13464-83-0)
- 7-(tert-Butyl)-3-(2,6-difluorophenyl)-6-((1-ethyl-1h-1,2,4-triazol-5-yl)methoxy)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 286456-46-0)
- 2-((4-Allyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-(benzyloxy)phenyl)acetamide (CAS 573698-19-8)
- 4-Iodo-3-methylpyridine (CAS 22282-64-0)
- Tirzepatide Impurity 33 (CAS CATO-C4X-324033)
Why CATO?
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