Methyl (2E)-3-{3-[(E)-[(dimethylamino)methylidene]amino]-4,6-dimethylthieno[2,3-b]pyridin-2-yl}prop-2-enoate CAS 338956-44-8
| CAS No. | 338956-44-8 |
| Molecular Formula | C16H19N3O2S |
| Molecular Weight | 317.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Methyl (2E)-3-{3-[(E)-[(dimethylamino)methylidene]amino]-4,6-dimethylthieno[2,3-b]pyridin-2-yl}prop-2-enoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 317.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Methyl (2E)-3-{3-[(E)-[(dimethylamino)methylidene]amino]-4,6-dimethylthieno[2,3-b]pyridin-2-yl}prop-2-enoate (CAS 338956-44-8), a certified reference material (molecular formula C16H19N3O2S, MW 317.41 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 | C16H19N3O2S |
| Molecular Weight | 317.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- LOC14 (CAS 877963-94-5)
- N-(2-((2-(dimethylamino)ethyl)carbamoyl)phenyl)thiophene-2-carboxamide (CAS 947031-38-1)
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- N-(2-(1H-Pyrrol-1-yl)ethyl)-2-((tetrahydrothiophen-3-yl)oxy)isonicotinamide (CAS 2034498-47-8)
- 2-(Piperazin-1-yl)pentan-1-ol (CAS 1182901-74-1)
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