3-Ethoxy-4-(methylsulfonyl)-1,2,5-thiadiazole CAS 178368-42-8
| CAS No. | 178368-42-8 |
| Molecular Formula | C5H8N2O3S2 |
| Molecular Weight | 208.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Ethoxy-4-(methylsulfonyl)-1,2,5-thiadiazole 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.
CATO supplies 3-Ethoxy-4-(methylsulfonyl)-1,2,5-thiadiazole (CAS 178368-42-8), a certified reference material (molecular formula C5H8N2O3S2, MW 208.26 g/mol) for analytical method development and quality control.
Structurally, 3-Ethoxy-4-(methylsulfonyl)-1,2,5-thiadiazole (C5H8N2O3S2) 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 208.26 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C5H8N2O3S2 |
| Molecular Weight | 208.26 g/mol |
| Purity | 97%+ |
| 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.) | 2007 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Ethoxy Standards
- 3-Ethoxy-6-piperazin-1-ylpyridazine (CAS 1105195-92-3)
- 3-Ethoxy-1-(1,3,5-trimethyl-1h-pyrazol-4-yl)prop-2-en-1-one (CAS 1344881-20-4)
- 2-Ethoxy-1-(pent-4-en-1-yl)pyrimidin-4(1H)-one (CAS 388567-10-0)
- 4-Ethoxy-2-(piperazin-1-yl)pyrimidine (CAS 59215-35-9)
- 3-Ethoxy-2-propoxybenzaldehyde (CAS 100256-89-1)
- Ethyl 3-Ethoxy-5-methylbenzoate (CAS 1126430-96-3)
- Ethyl 5-ethoxy-4-methylbenzoate (CAS 1196047-01-4)
- 4-Ethoxy-2-isopropylbenzoic acid (CAS 1215973-74-2)
Recommended Standards
- Anthracen-2-ylhydrazine (CAS 17529-06-5)
- Ethyl 3-amino-4-(dimethylamino)benzoate (CAS 178469-07-3)
- 5-(4-Fluorophenyl)-3-(methylthio)-1H-pyrazole (CAS 175137-20-9)
- (R)-6-(6-methylpyridin-2-yloxy)-1,4-oxazepane (CAS 1795777-36-4)
- 2-Methyl-1H-pyrrolo[2,3-b]pyridin-5-ol (CAS 7551-12-4)
- Ethyl 1-(4-bromophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate, 97% (CAS 618070-60-3)
- Irinotecan Impurity 1 (CAS 116269-53-5)
- 2-Methoxy-4'-(pyrrolidin-1-ylsulfonyl)-[1,1'-biphenyl]-4-carboxylic acid (CAS 1261907-45-2)
- Methyl (S)-8-amino-5,6,7,8-tetrahydronaphthalene-2-carboxylate hydrochloride (CAS 1246509-73-8)
- 1-Bromo-3-(tert-butyl)-5-methylbenzene (CAS 193905-94-1)
- 2-Chloro-3-((2-hydroxyethyl)amino)naphthalene-1,4-dione (CAS 69844-34-4)
- n-Cyclohexyl-2-(2-ethoxy-4-formylphenoxy)acetamide (CAS 336174-18-6)
- 5-Methylpyrrolidine-2,4-dicarboxylic acid (CAS 117835-09-3)
- FMRF-Like Neuropeptide (CAS 121801-61-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com