(3-Amino-6-methyl-5,6,7,8-tetrahydrothieno[2,3-b][1,6]naphthyridin-2-yl)(4-methoxyphenyl)methanone CAS 340817-44-9

Purity 97%+In StockPharmaceutical Standards
CAS No.340817-44-9
Molecular FormulaC19H19N3O2S
Molecular Weight353.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3-Amino-6-methyl-5,6,7,8-tetrahydrothieno[2,3-b][1,6]naphthyridin-2-yl)(4-methoxyphenyl)methanone CAS 340817-44-9 chemical structure

Description

Structurally, (3-Amino-6-methyl-5,6,7,8-tetrahydrothieno[2,3-b][1,6]naphthyridin-2-yl)(4-methoxyphenyl)methanone (C19H19N3O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 353.44 g/mol, it falls into the moderately-high-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).

(3-Amino-6-methyl-5,6,7,8-tetrahydrothieno[2,3-b][1,6]naphthyridin-2-yl)(4-methoxyphenyl)methanone (CAS 340817-44-9) is a high-purity analytical reference standard with the molecular formula C19H19N3O2S and a molecular weight of 353.44 g/mol.

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), (3-Amino-6-methyl-5,6,7,8-tetrahydrothieno[2,3-b][1,6]naphthyridin-2-yl)(4-methoxyphenyl)methanone 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 FormulaC19H19N3O2S
Molecular Weight353.44 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms3
Sulfur Atoms1

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