rac N-Nitroso Thiazolidine-4-carboxylic Acid CAS 88381-44-6
| CAS No. | 88381-44-6 |
| Molecular Formula | C4H6N2O3S |
| Molecular Weight | 162.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
rac N-Nitroso Thiazolidine-4-carboxylic Acid (CAS 88381-44-6), molecular formula C4H6N2O3S and molecular weight 162.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, rac N-Nitroso Thiazolidine-4-carboxylic Acid (C4H6N2O3S) contains an amide group, a sulfone group, a carboxylic acid group, 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 162.17 g/mol, it falls into the medium-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), rac N-Nitroso Thiazolidine-4-carboxylic 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 | C4H6N2O3S |
| Molecular Weight | 162.17 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- Metronidazole Impurity 27 (CAS 34916-84-2)
- (4R)-N-Nitroso Thiazolidine-4-carboxylic Acid (CAS 86594-16-3)
- Hydroxy(1H-imidazol-4-yl)methanesulfinic acid (CAS 950820-62-9)
- 5-Fluoro-2,3-thiophenedicarboxaldehyde (CAS 1015071-22-3)
- 6-Ethoxy-N-(furan-2-ylmethyl)benzo[d]thiazol-2-amine (CAS 1286732-80-6)
- (2-(9H-Carbazol-9-yl)dibenzo[b,d]furan-4,6-diyl)bis(diphenylphosphineoxide) (CAS 1407158-19-3)
- 4-(Difluoromethyl)-2-methylbenzo[d]oxazole (CAS 1807047-38-6)
- Methyl 5-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate (CAS 1842396-18-2)
- (4-hydroxy-3-methoxyphenyl)(morpholino)methanethione (CAS 17692-71-6)
- 9-(1H-pyrrol-1-yl)-2,4-bis(trifluoromethyl)-[1,2,4]triazolo[4,3-a][1,8]naphthyridine (CAS 338965-34-7)
- 3-Fluoro-1H-pyrrolo[2,3-b]pyridine-6-carboxylic acid (CAS 1352394-37-6)
- Ethyl 6-bromo-2-oxo-1,2-dihydropyridine-3-carboxylate (CAS 1807226-61-4)
- 1-azido-2-methylpropane (CAS 13686-31-2)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
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