9,10-Dimethyl-9,10-dihydro-9,10-ethanoanthracene-2,3,6,7-tetraol CAS 95156-77-7

Purity 97%+In StockPharmaceutical Standards
CAS No.95156-77-7
Molecular FormulaC18H18O4
Molecular Weight298.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

9,10-Dimethyl-9,10-dihydro-9,10-ethanoanthracene-2,3,6,7-tetraol CAS 95156-77-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 298.33 g/mol gives 9,10-Dimethyl-9,10-dihydro-9,10-ethanoanthracene-2,3,6,7-tetraol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 9,10-Dimethyl-9,10-dihydro-9,10-ethanoanthracene-2,3,6,7-tetraol (CAS 95156-77-7), a certified reference material (molecular formula C18H18O4, MW 298.33 g/mol) for analytical method development and quality control.

Structurally, 9,10-Dimethyl-9,10-dihydro-9,10-ethanoanthracene-2,3,6,7-tetraol (C18H18O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 298.33 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC18H18O4
Molecular Weight298.33 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984

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