3'-(4-Ethoxyphenyl)spiro[indoline-3,2'-thiazolidine]-2,4'-dione CAS 155425-87-9
| CAS No. | 155425-87-9 |
| Molecular Formula | C18H16N2O3S |
| Molecular Weight | 340.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 340.40 g/mol gives 3'-(4-Ethoxyphenyl)spiro[indoline-3,2'-thiazolidine]-2,4'-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3'-(4-Ethoxyphenyl)spiro[indoline-3,2'-thiazolidine]-2,4'-dione (CAS 155425-87-9), a certified reference material (molecular formula C18H16N2O3S, MW 340.40 g/mol) for analytical method development and quality control.
3'-(4-Ethoxyphenyl)spiro[indoline-3,2'-thiazolidine]-2,4'-dione (C18H16N2O3S) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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'-(4-Ethoxyphenyl)spiro[indoline-3,2'-thiazolidine]-2,4'-dione 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 | C18H16N2O3S |
| Molecular Weight | 340.40 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.) | 2001 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethoxyphenyl Standards
- 3-(3-Ethoxyphenyl)-4-((3-(furan-2-yl)allylidene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 497921-99-0)
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- 2-(2-Ethoxyphenyl)-4,5-diphenyl-1H-imidazole (CAS 5496-42-4)
- 4-(2-Ethoxyphenyl)-2-methyl-5-oxo-5H-indeno[1,2-b]pyridine-3-carbonitrile (CAS 691868-78-7)
- Methyl 4-((2-ethoxyphenyl)amino)-6-fluoroquinoline-2-carboxylate (CAS 1207051-46-4)
- 2-(3-Ethoxyphenyl)-7,8-dimethylquinoline-4-carbonyl chloride (CAS 1160261-52-8)
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- 2-(3-Ethoxyphenyl)-6,8-dimethylquinoline-4-carbonyl chloride (CAS 1160262-88-3)
Recommended Standards
- Benzo[d]thiazol-6-yl(4-(pyrazin-2-yloxy)piperidin-1-yl)methanone (CAS 1421509-13-8)
- (5E)-5-(2,3-Dimethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one 15985-19-0 (CAS 15985-19-0)
- N-(2-((6-(Pyridin-2-ylamino)pyrimidin-4-yl)amino)ethyl)thiophene-2-carboxamide (CAS 1421485-23-5)
- (5E)-5-(2,5-Dimethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one 15985-21-4 (CAS 15985-21-4)
- 6-Amino-4-[4-(cyclopentyloxy)-3-methoxyphenyl]-3-(2,4-dimethylphenyl)-2H,4H-pyrano[2,3-c]pyrazole-5-carbonitrile (CAS 903086-86-2)
- tert-Butyl 2-amino-7-methyl-6,7-dihydrothiazolo[5,4-c]pyridine-5(4H)-carboxylate (CAS 1253415-55-2)
- 4-Amino-3-(furan-2-ylmethyl)-6,7-dimethoxyquinazoline-2(3H)-thione (CAS 439121-03-6)
- 6-Chloro-N-(2-methylphenyl)-2-pyridinamine (CAS 1220017-81-1)
- (3,4-Dimethoxy-benzyl)-pyridin-4-ylmethyl-aminehydrochloride (CAS 1185294-28-3)
- 4-Methoxyisoquinoline-3-carboxylic acid (CAS 170621-98-4)
- tert-Butyl (3R,4R)-3-fluoro-4-(methylamino)pyrrolidine-1-carboxylate (CAS 1932395-66-8)
- [(<I>S</I>)-(-)-1-(4-nitrophenyl)-2-pyrrolidinemethyl]acrylate (CAS 152100-45-3)
- 4-(1-Ethyl-3-methoxy-4-methyl-1H-pyrazol-5-yl)piperidine (CAS 419571-72-5)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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