4,4',5,5'-Tetrakis(ethylthio)-2,2'-bi(1,3-dithiolylidene) CAS 104515-79-9

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,4',5,5'-Tetrakis(ethylthio)-2,2'-bi(1,3-dithiolylidene).

4,4',5,5'-Tetrakis(ethylthio)-2,2'-bi(1,3-dithiolylidene) (CAS 104515-79-9), molecular formula C14H20S8 and molecular weight 444.83 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4,4',5,5'-Tetrakis(ethylthio)-2,2'-bi(1,3-dithiolylidene) (C14H20S8) contains sulfur-containing functionality, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 444.83 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.

As a certified reference material (CRM), 4,4',5,5'-Tetrakis(ethylthio)-2,2'-bi(1,3-dithiolylidene) 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

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