2-(3-Ethyl-4-oxo-2-(phenylimino)thiazolidin-5-yl)acetic acid CAS 104445-59-2
| CAS No. | 104445-59-2 |
| Molecular Formula | C13H14N2O3S |
| Molecular Weight | 278.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(3-Ethyl-4-oxo-2-(phenylimino)thiazolidin-5-yl)acetic acid (CAS 104445-59-2) is a high-purity analytical reference standard with the molecular formula C13H14N2O3S and a molecular weight of 278.33 g/mol.
Structurally, 2-(3-Ethyl-4-oxo-2-(phenylimino)thiazolidin-5-yl)acetic acid (C13H14N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 278.33 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H14N2O3S |
| Molecular Weight | 278.33 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- [2-Amino-4-(4-ethoxy-phenyl)-thiazol-5-yl]-acetic acid (CAS 1019111-18-2)
- 3-(Morpholinomethyl)-5-(pyridin-3-yl)-1,3,4-oxadiazole-2(3H)-thione (CAS 105491-65-4)
- [4-(4-Methoxy-phenyl)-2-methylamino-thiazol-5-yl]-acetic acid (CAS 1019107-99-3)
- Ethyl 2-(2-(2-aminothiazol-4-yl)phenoxy)acetate (CAS 1082129-47-2)
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- Methyl 2-bromo-3-methyl-3H-imidazo[4,5-b]pyridine-6-carboxylate (CAS 1187830-49-4)
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