5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene CAS 89057-44-3

Purity 97%+In StockPharmaceutical Standards
CAS No.89057-44-3
Molecular FormulaC20H20
Molecular Weight260.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene CAS 89057-44-3 chemical structure

Description

The occurrence of 5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene is closely related to a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene (CAS 89057-44-3), molecular formula C20H20 and molecular weight 260.37 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene (C20H20) is characterized by a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC20H20
Molecular Weight260.37 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982

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