n-(3-Cyano-5,6,7,8-tetrahydro-4h-cyclohepta[b]thiophen-2-yl)-4-methoxybenzamide CAS 332373-83-8

Purity 97%+In StockPharmaceutical Standards
CAS No.332373-83-8
Molecular FormulaC18H18N2O2S
Molecular Weight326.41 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

n-(3-Cyano-5,6,7,8-tetrahydro-4h-cyclohepta[b]thiophen-2-yl)-4-methoxybenzamide CAS 332373-83-8 chemical structure

Description

As a certified reference material (CRM), n-(3-Cyano-5,6,7,8-tetrahydro-4h-cyclohepta[b]thiophen-2-yl)-4-methoxybenzamide 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.

n-(3-Cyano-5,6,7,8-tetrahydro-4h-cyclohepta[b]thiophen-2-yl)-4-methoxybenzamide (CAS 332373-83-8), molecular formula C18H18N2O2S and molecular weight 326.41 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, n-(3-Cyano-5,6,7,8-tetrahydro-4h-cyclohepta[b]thiophen-2-yl)-4-methoxybenzamide (C18H18N2O2S) 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 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 326.41 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC18H18N2O2S
Molecular Weight326.41 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2
Sulfur Atoms1

Related n Standards

Recommended Standards

Why CATO?