(tert-Butoxycarbonyl)cysteine CAS 186706-80-9
| CAS No. | 186706-80-9 |
| Molecular Formula | C8H15NO4S |
| Molecular Weight | 221.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 221.27 g/mol gives (tert-Butoxycarbonyl)cysteine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (tert-Butoxycarbonyl)cysteine (CAS 186706-80-9), a certified reference material (molecular formula C8H15NO4S, MW 221.27 g/mol) for analytical method development and quality control.
Structurally, (tert-Butoxycarbonyl)cysteine (C8H15NO4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 221.27 g/mol, it falls into the medium-molecular-weight range. 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 | C8H15NO4S |
| Molecular Weight | 221.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2010 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related tert Standards
- 4-((tert-Butoxycarbonyl)amino)-2-fluorobutanoic acid (CAS 2167670-48-4)
- 2-(tert-Butoxycarbonyl)phenylboronic acid (CAS 1003043-25-1)
- 4-[(tert-Butoxycarbonyl)amino]cyclohexanol-d5 (Mixture of Diastereomers) (CAS 1330042-18-6)
- 3-(tert-Butoxycarbonyl)benzoic acid (CAS 33704-19-7)
- (5-(Tert-butoxycarbonyl)pyridin-3-yl)boronic acid (CAS 1203649-61-9)
- (2-(Tert-butoxycarbonyl)pyridin-3-yl)boronic acid (CAS 2304635-14-9)
- (6-(tert-Butoxycarbonyl)pyridin-3-yl)boronic acid (CAS 2913214-50-1)
- 5-(tert-Butoxycarbonyl)nicotinic acid (CAS 1017793-26-8)
Recommended Standards
- Methyl 2-hydroxy-3-(1-oxidothiomorpholino)propanoate (CAS 1864891-64-4)
- 1-(5-Fluoro-3,3-dimethylindolin-1-yl)propan-2-one (CAS 1956376-90-1)
- 3-(3-Fluorobenzyl)-1-methylpiperidin-4-one (CAS 1823544-64-4)
- (1-Benzyl-3-fluoro-1,2,5,6-tetrahydropyridin-4-yl)methanol (CAS 895578-02-6)
- (Z)-4-(4-(dimethylamino)benzylidene)-2,5-diphenyl-2,4-dihydro-3H-pyrazol-3-one (CAS 39143-18-5)
- Methyl 3-(aminomethyl)-5-chlorobenzoate (CAS 1393566-81-8)
- n-(3-Bromo-4-methoxybenzyl)-2-methylpropan-1-amine (CAS 1152927-58-6)
- tert-Butyl (S)-7-(3-(4-(2-(((benzyloxy)carbonyl)amino)-3-methoxy-3-oxopropyl)phenoxy)propyl)-3,4-dihydro-1,8-naphthyridine-1(2H)-carboxylate (CAS 2206777-17-3)
- Bicyclo[3.2.1]octane-2,6-dione (CAS 16473-11-3)
- 4-Amino-6-(p-tolyl)pyridazin-3(2H)-one (CAS 893762-54-4)
- 3-((5-Chloro-1,2,4-oxadiazol-3-yl)methyl)-6-(trifluoromethyl)pyrimidin-4(3H)-one (CAS 1823182-95-1)
- (6R,8aR)-octahydroindolizin-6-ol (CAS 219666-51-0)
- N-(6-(tert-Butyl)-5-oxo-1,2,4-triazin-4(5H)-yl)formamide (CAS 106131-71-9)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com