3-(2-Methylbenzo[d]thiazol-3-ium-3-yl)propane-1-sulfonate CAS 56405-37-9
| CAS No. | 56405-37-9 |
| Molecular Formula | C11H13NO3S2 |
| Molecular Weight | 271.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3-(2-Methylbenzo[d]thiazol-3-ium-3-yl)propane-1-sulfonate (C11H13NO3S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO supplies 3-(2-Methylbenzo[d]thiazol-3-ium-3-yl)propane-1-sulfonate (CAS 56405-37-9), a certified reference material (molecular formula C11H13NO3S2, MW 271.36 g/mol) for analytical method development and quality control.
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 | C11H13NO3S2 |
| Molecular Weight | 271.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Methylbenzo Standards
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Recommended Standards
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- 3-(3-Bromophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid (CAS 954230-35-4)
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- 5,7,7-Trimethyl-3,6-dioxabicyclo[3.2.2]nonane-2,4-dione (CAS 4703-74-6)
- Insulin Degludec Impurity 10 (CAS CATO-C4X-215710)
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