5-(1-Allyl-2-oxoindolin-3-ylidene)-2-(4-ethoxyphenyl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one CAS 538340-83-9
| CAS No. | 538340-83-9 |
| Molecular Formula | C23H18N4O3S |
| Molecular Weight | 430.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(1-Allyl-2-oxoindolin-3-ylidene)-2-(4-ethoxyphenyl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-(1-Allyl-2-oxoindolin-3-ylidene)-2-(4-ethoxyphenyl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 538340-83-9), a certified reference material (molecular formula C23H18N4O3S, MW 430.48 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 5-(1-Allyl-2-oxoindolin-3-ylidene)-2-(4-ethoxyphenyl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 430.48 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.
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.
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 | C23H18N4O3S |
| Molecular Weight | 430.48 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Allyl Standards
- 2-((4-Allyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-sulfamoylphenyl)acetamide (CAS 578761-02-1)
- 2-((4-Allyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-bromophenyl)acetamide (CAS 573933-57-0)
- 2-((4-Allyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-bromophenyl)acetamide (CAS 618880-27-6)
- 3-(4-Allyl-5-(prop-2-yn-1-ylthio)-4H-1,2,4-triazol-3-yl)-1-(3,4-dichlorobenzyl)pyridin-2(1H)-one (CAS 477853-25-1)
- N-allyl-6-(((4-chlorophenyl)thio)methyl)-2-((4-fluorobenzyl)thio)pyrimidin-4-amine (CAS 341965-48-8)
- 3-Allyl-2-(benzylthio)-3H-spiro[benzo[h]quinazoline-5,1'-cyclohexan]-4(6H)-one (CAS 353787-50-5)
- 2-((4-Allyl-5-(furan-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-phenoxyphenyl)acetamide (CAS 573694-45-8)
- 1-Allyl-2-((4-fluorobenzyl)sulfonyl)-4,5-diphenyl-1H-imidazole (CAS 339277-78-0)
Recommended Standards
- 4-[[Ethyl(phenylmethyl)amino]sulfonyl]-N-[5-(methoxymethyl)-1,3,4-oxadiazol-2-yl]benzamide (CAS 850936-24-2)
- N-(6-Methylbenzo[d]thiazol-2-yl)-3-(3-nitrophenyl)-N-(pyridin-3-ylmethyl)acrylamide (CAS 896010-15-4)
- 2-(1-Butyl-2-oxoindolin-3-ylidene)-6-phenyl-2H-thiazolo[3,2-b][1,2,4]triazine-3,7-dione (CAS 607385-06-8)
- N-[[[4-(Acetylamino)phenyl]thio]methyl]-3'-deoxy-adenosine (CAS 704915-79-7)
- Octahydro-[1,2,4,5]tetrazino[1,2-a][1,2,4,5]tetrazine (CAS 1743-13-1)
- 5,5'-(Thiophene-2,5-diyl)diisophthalaldehyde (CAS 2459652-61-8)
- 1-(4-Chlorophenyl)-4-p-tolyl-1H-pyrazol-5-amine (CAS 1202029-96-6)
- 2-[2-(Pyridin-2-yl)pyrimidin-5-yl]-1,3-benzoxazole (CAS 477859-77-1)
- N-1-Naphthalenyl-1-pentyl-1H-indole-3-carboxamide (CAS 1338925-11-3)
- Dipropylene Glycol-Monoethyl Ether(Mixture of isomers) (CAS 34590-94-8)
- Methyl 2-(5-methylisoxazole-4-carboxamido)benzoate (CAS 724436-21-9)
- 2-(5-(1,3-Dioxolan-2-yl)furan-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 873583-42-7)
- 4-Methoxyisoindoline Hydrochloride (CAS 1203682-51-2)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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