2-((4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-methoxyphenyl)acetamide CAS 333331-32-1
| CAS No. | 333331-32-1 |
| Molecular Formula | C18H19N5O2S |
| Molecular Weight | 369.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 2-((4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-methoxyphenyl)acetamide (CAS 333331-32-1), a certified reference material (molecular formula C18H19N5O2S, MW 369.44 g/mol) for analytical method development and quality control.
2-((4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-methoxyphenyl)acetamide (C18H19N5O2S) contains a steroid 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.
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 | C18H19N5O2S |
| Molecular Weight | 369.44 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 2-((4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 142529-68-8)
- 2-((4-Ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-methoxyphenyl)acetamide (CAS 618414-59-8)
- 2-((4-Ethyl-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-methoxyphenyl)acetamide (CAS 483327-15-7)
- 2-((4-Ethyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-methoxyphenyl)acetamide (CAS 332883-52-0)
- 2-((4-Ethyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-methoxyphenyl)acetamide (CAS 575467-06-0)
- 2-((4-Ethyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 332883-49-5)
- 2,2'-(Pyridin-3-ylmethylene)bis(3-hydroxy-5,5-dimethylcyclohex-2-en-1-one) (CAS 609821-58-1)
- 4-Methyl-2-(((1-(pyridin-3-ylsulfonyl)piperidin-4-yl)methyl)thio)thiazole (CAS 1428378-57-7)
Recommended Standards
- 2-((4-(tert-Butyl)benzyl)thio)-5-(4-nitrophenyl)-1,3,4-oxadiazole (CAS 332385-25-8)
- 2-((3-Ethyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 256955-22-3)
- 1-(3,4-Dihydroxyphenyl)-2-((4-ethyl-5-(m-tolyl)-4H-1,2,4-triazol-3-yl)thio)ethanone (CAS 714924-44-4)
- (5Z)-5-[(4-Oxo-4H-chromen-3-yl)methylidene]-3-[(piperidin-1-yl)methyl]-2-sulfanylideneimidazolidin-4-one (CAS 865659-98-9)
- 1-Nitroanthracene-9,10-dione (CAS 82-34-8)
- 6-methyl-4,5,6,7-tetrahydro-1,3-benzothiazol-2-amine hydrochloride (CAS 73730-94-6)
- 4-Bromo-5-chloro-2-methylphenylboronic acid (CAS 1451391-48-2)
- 6-Fluoro-7-nitro-1,4-dihydroquinoxaline-2,3-dione (CAS 143151-09-1)
- N-(4-Chlorophenyl)-1,3-propanesultam (CAS 71703-13-4)
- 4-fluoro-3-(piperidin-1-yl)benzoic acid hydrochloride (CAS 1795441-39-2)
- 2′-Cyano-N,N-dimethyl[1,1′-biphenyl]-4-carboxamide (CAS 1365272-24-7)
- {[(3-methylphenyl)methyl]sulfanyl}methanimidamide (CAS 763905-22-2)
- 2-Acetyl-1-methyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid (CAS 293326-81-5)
- Calcitonin N-Terminal Flanking Peptide (human) (CAS 118277-01-3)
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