3-Ethyl-4-(phenylamino)-1H-1,2,4-triazol-5(4H)-one CAS 75989-67-2
| CAS No. | 75989-67-2 |
| Molecular Formula | C10H12N4O |
| Molecular Weight | 204.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Ethyl-4-(phenylamino)-1H-1,2,4-triazol-5(4H)-one (CAS 75989-67-2), a certified reference material (molecular formula C10H12N4O, MW 204.23 g/mol) for analytical method development and quality control.
The molecular framework of 3-Ethyl-4-(phenylamino)-1H-1,2,4-triazol-5(4H)-one (C10H12N4O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Ethyl-4-(phenylamino)-1H-1,2,4-triazol-5(4H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H12N4O |
| Molecular Weight | 204.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
- 1-((Phenylamino)methyl)pyrrolidine-2,5-dione (CAS 13314-99-3)
- 4-(Phenylamino)-1H-1,2,3-triazole-5-carboxylic acid (CAS 72693-60-8)
- 6-(Phenylamino)-1,3,5-triazine-2,4(1H,3H)-dione (CAS 20964-55-0)
- 2-(Phenylamino)-1,3-oxazole-4-carboxylic acid (CAS 1357956-61-6)
- {5-[(phenylamino)methyl]furan-2-yl}methanol (CAS 849806-62-8)
- 3-Ethyl-4-(phenylamino)furan-2(5H)-one (CAS 501653-19-6)
- 2-(Phenylamino)ethane-1-sulfonyl fluoride (CAS 60353-00-6)
- 3-(Phenylamino)cyclopentanecarboxylic acid (CAS 1233927-35-9)
Recommended Standards
- 3-Ethyl-2-hydrazinyl-3,4-dihydroquinazolin-4-one (CAS 86662-57-9)
- 3-Ethyl-7-(hydroxymethyl)-1,5-naphthyridin-2(1H)-one (CAS 2589531-74-6)
- 3-Ethoxy-5-methyl-4-(pyridin-4-yl)isoxazole (CAS 342424-89-9)
- 3-Ethyl-7-(hydroxymethyl)quinoxalin-2(1H)-one (CAS 2589532-22-7)
- (4-Hydroxypiperidin-1-yl)(pyridin-3-yl)methanone (CAS 1082883-04-2)
- tert-butyl N-[(1R,3S)-3-(hydroxymethyl)cyclopentyl]carbamate (CAS 347185-68-6)
- (3-Fluoro-5-(trifluoromethyl)phenyl)methanamine hydrochloride (CAS 693249-29-5)
- (3-((3S,4S)-4-Amino-3-methyl-2-oxa-8-azaspiro[4.5]decan-8-yl)-6-(2,3-dichlorophenyl)-5-methylpyrazin-2-yl)methanol (CAS 2172651-73-7)
- Vortioxetine Impurity 150 (CAS CATO-C4X-1056150)
- Ethyl 2-bromo-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylate (CAS 1203705-56-9)
- trans-2-(2-(Bromomethyl)-1,3-dioxan-5-yl)isoindoline-1,3-dione (CAS 1648864-54-3)
- N-(4-Methoxyphenyl)-2-(pyridin-2-ylsulfanyl)acetamide (CAS 298215-17-5)
- 2-(4-(Methylthio)phenyl)-N-(5-(thiophen-2-ylmethyl)-1,3,4-oxadiazol-2-yl)acetamide (CAS 1021083-09-9)
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