4-Thioxothiazolidin-2-one CAS 4303-29-1
| CAS No. | 4303-29-1 |
| Molecular Formula | C3H3NOS2 |
| Molecular Weight | 133.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Thioxothiazolidin-2-one is closely related to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-Thioxothiazolidin-2-one (CAS 4303-29-1), a certified reference material (molecular formula C3H3NOS2, MW 133.19 g/mol) for analytical method development and quality control.
Structurally, 4-Thioxothiazolidin-2-one (C3H3NOS2) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 133.19 g/mol, it falls into the low-molecular-weight range. 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).
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.
As a certified reference material (CRM), 4-Thioxothiazolidin-2-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 | C3H3NOS2 |
| Molecular Weight | 133.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Thioxothiazolidin Standards
- 4-Thioxothiazolidin-5-one (CAS 94811-15-1)
- 3-Methyl-2-thioxothiazolidin-4-one (CAS 4807-55-0)
- 1-(2-Thioxothiazolidin-3-yl)ethanone (CAS 76397-53-0)
- 3-Ethyl-2-thioxothiazolidin-4-one (CAS 7648-01-3)
- 2-(4-Oxo-2-thioxothiazolidin-5-yl)acetic acid (CAS 701-23-5)
- 2-(4-Oxo-2-thioxothiazolidin-3-yl)butanoic acid (CAS 13242-81-4)
- 2-Phenyl-1-(2-thioxothiazolidin-3-yl)ethan-1-one (CAS 65439-58-9)
- (2-(4-Oxo-2-thioxothiazolidin-3-yl)ethyl)phosphonic acid (CAS 227316-23-6)
Recommended Standards
- 4-Methylisoindoline (CAS 739365-30-1)
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- 4-Cyclopropylaniline (CAS 3158-71-2)
- tert-butyl 4,4-dicyanopiperidine-1-carboxylate (CAS 1267759-28-3)
- 1-Methyl-4-((3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)sulfonyl)piperazine (CAS 1033743-79-1)
- Daprodustat-D8 (CAS 2250290-94-7)
- tert-Butyl 2-bromobenzyl(methyl)carbamate (CAS 954238-61-0)
- 5-(Morpholinosulfonyl)thiazol-2-amine (CAS 1261070-23-8)
- Bromo-PEG1-C2-azide (CAS 1144106-65-9)
- 1,3-Dibromo-2-chloro-5-fluorobenzene (CAS 179897-90-6)
- 4-Hydroxybutanimidamide Hydrochloride (CAS 1803587-57-6)
- Lercanidipine Impurity 63 (CAS CATO-C4X-136463)
- Mitogenic Pentapeptide (CAS 87173-03-3)
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