H-Lys-OBzl · 2 p-tosylate CAS 16259-78-2
| CAS No. | 16259-78-2 |
| Molecular Formula | C13H20N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including H-Lys-OBzl · 2 p-tosylate.
H-Lys-OBzl · 2 p-tosylate (CAS 16259-78-2), molecular formula C13H20N2O2C7H8O3S and molecular weight 408.51 g/mol, is a CATO reference standard with documented purity and traceability.
H-Lys-OBzl · 2 p-tosylate (C13H20N2O2C7H8O3S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C13H20N2O2 2*C7H8O3S |
| Molecular Weight | 408.51 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2,5-Difluorobenzene-1,4-diamine dihydrochloride (CAS 4140-67-4)
- 2-((1-Benzylpiperidin-3-yl)oxy)acetic acid (CAS 1353961-40-6)
- Benzhydryl carbamimidothioate hydrobromide (CAS 90280-15-2)
- 4-Amino-N-benzyl-N-propylbenzenesulfonamide (CAS 1155063-54-9)
- 1-(6-Methyl-2-phenylquinolin-4-yl)-2-(piperidin-4-yl)ethanone (CAS 80221-76-7)
- Sotalol-d6 Hydrochloride (CAS 1246820-85-8)
- tert-Butyl 3-((4-methylpyridin-2-yl)thio)piperidine-1-carboxylate (CAS 1353988-16-5)
- 2-Methyl-4,5,6,7-tetrahydro-2H-indazol-5-amine (CAS 612820-69-6)
- 4-Chloro-2-(1H-1,2,4-triazol-3-yl)aniline (CAS 55138-98-2)
- Semaglutide impurity 91 (CAS CATO-C4X-222691)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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