(S)-4-methyl-2-(2-(methylthio)nicotinamido)pentanoic acid 175201-69-1 N-[2-(Methylthio)nicotinoyl]-L-leucine CAS 175201-69-1
| CAS No. | 175201-69-1 |
| Molecular Formula | C13H18N2O3S |
| Molecular Weight | 282.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(S)-4-methyl-2-(2-(methylthio)nicotinamido)pentanoic acid 175201-69-1 N-[2-(Methylthio)nicotinoyl]-L-leucine (CAS 175201-69-1), molecular formula C13H18N2O3S and molecular weight 282.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (S)-4-methyl-2-(2-(methylthio)nicotinamido)pentanoic acid 175201-69-1 N-[2-(Methylthio)nicotinoyl]-L-leucine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 282.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C13H18N2O3S |
| Molecular Weight | 282.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
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