3H,3'H-1,1'-Spirobi[isobenzofuran]-3,3'-dione CAS 5738-26-1

Description

The occurrence of 3H,3'H-1,1'-Spirobi[isobenzofuran]-3,3'-dione is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3H,3'H-1,1'-Spirobi[isobenzofuran]-3,3'-dione (CAS 5738-26-1) is a high-purity analytical reference standard with the molecular formula C14H7ClO2 and a molecular weight of 242.66 g/mol.

Based on its molecular formula C14H7ClO2, 3H,3'H-1,1'-Spirobi[isobenzofuran]-3,3'-dione contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 242.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 3H,3'H-1,1'-Spirobi[isobenzofuran]-3,3'-dione 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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