4-Methyl-5-(methylsulfonyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine CAS 672286-96-3
| CAS No. | 672286-96-3 |
| Molecular Formula | C9H13NO2S2 |
| Molecular Weight | 231.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Methyl-5-(methylsulfonyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine (CAS 672286-96-3), molecular formula C9H13NO2S2 and molecular weight 231.34 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 4-Methyl-5-(methylsulfonyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 231.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C9H13NO2S2 |
| Molecular Weight | 231.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 4-((6-Ethyl-2,6-diazaspiro[3.3]Heptan-2-yl)methyl)aniline (CAS 2306263-10-3)
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- 3-(Pyridin-4-yl)-3,9-diazaspiro[5.5]Undecane (CAS 352445-70-6)
- 5-[(4-Methyl-1-piperazinyl)methyl]isoindoline (CAS 912999-93-0)
- (S)-4-Thioxohexahydropyrrolo[1,2-a]pyrazin-1(2H)-one (CAS 167391-75-5)
- 3,5-Dibromo-1-[(2E)-3-phenylprop-2-en-1-yl]-1H-1,2,4-triazole (CAS 1240590-73-1)
- (5-Nitro-2-phenylbenzo[d]oxazol-7-yl)methanol (CAS 139390-11-7)
- 5-Octadecylpyrimidine-2,4,6-triamine (CAS 94087-81-7)
- 4-Nitro-1H-pyrazole-1-acetonitrile (CAS 1001500-47-5)
- 3-BRomo-4-oxo-1,4-dihydro-quinoline-6-carbonitrile (CAS 304904-69-6)
- (5E)-5-(4-Isopropylbenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one (CAS 100393-19-9)
- Roxadustat Impurity 135 (CAS CATO-C4X-2213135)
- (S)-Octahydropyrrolo[1,2-a]pyrazine dihydrobromide (CAS 150208-84-7)
- [γ-Glu]15 Semaglutide (CAS CATO-C4X-222690)
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