3-(5-(1-Methyl-2-oxoindolin-3-ylidene)-4-oxo-2-thioxothiazolidin-3-yl)propanoic acid CAS 305376-97-0
| CAS No. | 305376-97-0 |
| Molecular Formula | C15H12N2O4S2 |
| Molecular Weight | 348.40 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.
3-(5-(1-Methyl-2-oxoindolin-3-ylidene)-4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (CAS 305376-97-0), molecular formula C15H12N2O4S2 and molecular weight 348.40 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-(5-(1-Methyl-2-oxoindolin-3-ylidene)-4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (C15H12N2O4S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 348.40 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 3-(5-(1-Methyl-2-oxoindolin-3-ylidene)-4-oxo-2-thioxothiazolidin-3-yl)propanoic acid 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 | C15H12N2O4S2 |
| Molecular Weight | 348.40 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Methyl Standards
- 1-Benzyl-2-oxoindolin-3-yl phenylcarbamate (CAS 400076-63-3)
- 4-(5-(1-Methyl-2-oxoindolin-3-ylidene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid (CAS 306322-03-2)
- 5-(1-Methyl-2-oxoindolin-3-ylidene)-2-thioxo-3-(m-tolyl)thiazolidin-4-one (CAS 312935-65-2)
- 2-(2-Oxo-2-(2-oxoindolin-3-yl)acetamido)benzoic acid (CAS 90656-39-6)
- 1-Benzyl-2-oxoindolin-3-yl 4-chlorobenzoate (CAS 400076-66-6)
- 4-(((2-Oxoindolin-3-ylidene)methyl)amino)benzenesulfonamide (CAS 388626-12-8)
- 4-(4-Oxo-5-(2-oxoindolin-3-ylidene)-2-thioxothiazolidin-3-yl)benzoic acid (CAS 305376-86-7)
- 2-(1-Methyl-2-oxoindolin-3-ylidene)-N-phenylhydrazine-1-carbothioamide (CAS 79560-75-1)
Recommended Standards
- 3-(4-Fluorophenyl)-6-(2-methylpropane-2-sulfonyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 865658-03-3)
- 3-[1-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-2,5-dimethyl-1H-pyrrol-3-yl]-3-oxopropanenitrile (CAS 565193-58-0)
- 3-((4-(Methylsulfonyl)piperazin-1-yl)sulfonyl)benzoic acid (CAS 385379-94-2)
- 3-[4-(3-azidopropylamino)-1-oxo-isoindolin-2-yl]piperidine-2,6-dione (CAS 2399455-71-9)
- N-(2-(cyclohex-1-en-1-yl)ethyl)-6-methyl-4-oxo-4,5-dihydro-[1,2,3]triazolo[1,5-a]pyrazine-3-carboxamide (CAS 1396673-22-5)
- 2-Amino-6-fluorophenylboronic Acid Pinacol Ester (CAS 1418130-40-1)
- (3-[2-(Piperidin-1-yl)ethoxy]phenyl)boranediol (CAS 1311166-07-0)
- 1-[(tert-Butoxy)methyl]-3-nitrobenzene (CAS 1881332-11-1)
- 2-Bromo-7-(trifluoromethyl)benzo[d]thiazole, 97% (CAS 1188047-48-4)
- 6-Methyl-1,2,3,4-tetrahydronaphthalen-1-amine hydrochloride (CAS 2097938-61-7)
- Furan-3-yl(6-methoxynaphthalen-2-yl)methanol (CAS 1443326-39-3)
- (S)-2-amino-4-(2-(trifluoromethyl)phenyl)butanoic acid (CAS 1260614-65-0)
- 4-Boc-morpholin-2-one (CAS 1140502-97-1)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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