(2aR,2a1R,4aR,7aR)-2a,3,4a,7a-tetramethyl-2,2a,4a,5,6,7a-hexahydro-1H-cyclopenta[cd]inden-7(2a1H)-on CAS 137235-42-8

Description

(2aR,2a1R,4aR,7aR)-2a,3,4a,7a-tetramethyl-2,2a,4a,5,6,7a-hexahydro-1H-cyclopenta[cd]inden-7(2a1H)-on (CAS 137235-42-8), molecular formula C15H22O and molecular weight 218.33 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (2aR,2a1R,4aR,7aR)-2a,3,4a,7a-tetramethyl-2,2a,4a,5,6,7a-hexahydro-1H-cyclopenta[cd]inden-7(2a1H)-on (C15H22O) contains a hydroxyl group, an ether linkage, 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 218.33 g/mol, it falls into the medium-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), (2aR,2a1R,4aR,7aR)-2a,3,4a,7a-tetramethyl-2,2a,4a,5,6,7a-hexahydro-1H-cyclopenta[cd]inden-7(2a1H)-on 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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