(S)-N-Boc-L-homoserine Ethyl Ester Tosylate CAS 1331892-89-7
| CAS No. | 1331892-89-7 |
| Molecular Formula | C11H21NO5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (S)-N-Boc-L-homoserine Ethyl Ester Tosylate (CAS 1331892-89-7), a certified reference material (molecular formula C11H21NO5C7H8O3S, MW 419.49 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H21NO5C7H8O3S, (S)-N-Boc-L-homoserine Ethyl 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 419.49 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.
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.
CATO manufactures (S)-N-Boc-L-homoserine Ethyl Ester Tosylate 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 | C11H21NO5 C7H8O3S |
| Molecular Weight | 419.49 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- 1-Benzyl-4-(1-(2-methylallyl)-1H-benzo[d]imidazol-2-yl)pyrrolidin-2-one (CAS 847396-37-6)
- 2-(Benzo[d]thiazol-2-ylthio)-N-(2,5-dimethylphenyl)acetamide (CAS 332898-67-6)
- 5-Chloro-2-{[(pyridin-3-yl)methyl]sulfanyl}-1,3-benzoxazole (CAS 338750-71-3)
- 5-Ethyl-2,4-piperidinedione 73290-32-1 C7H11NO2 W8151 (CAS 73290-32-1)
- n-(Cyclohex-3-en-1-ylmethyl)-2-fluoroaniline (CAS 1041587-60-3)
- 2-(5-((1,3-Dioxoisoindolin-2-yl)methyl)-1,2,4-oxadiazol-3-yl)acetamide (CAS 1809484-44-3)
- 3-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-1-(4-methylbenzoyl)-1H-pyrazole (CAS 477711-69-6)
- 2-(2-Aminoethyl)-4-methoxyphenol (CAS 125438-42-8)
- Thiazole-2,5-dicarboxylic acid (CAS 790204-84-1)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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