6,12-Diethyl 5,11-dimethyl-4,10-dioxatricyclo[7.3.0.0,3,7]dodeca-1,3(7),5,8,11-pentaene-6,12-dicarboxylate CAS 7674-99-9

Purity 97%+In StockPharmaceutical Standards
CAS No.7674-99-9
Molecular FormulaC18H18O6
Molecular Weight330.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6,12-Diethyl 5,11-dimethyl-4,10-dioxatricyclo[7.3.0.0,3,7]dodeca-1,3(7),5,8,11-pentaene-6,12-dicarboxylate CAS 7674-99-9 chemical structure

Description

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.

6,12-Diethyl 5,11-dimethyl-4,10-dioxatricyclo[7.3.0.0,3,7]dodeca-1,3(7),5,8,11-pentaene-6,12-dicarboxylate (CAS 7674-99-9) is a high-purity analytical reference standard with the molecular formula C18H18O6 and a molecular weight of 330.33 g/mol.

Structurally, 6,12-Diethyl 5,11-dimethyl-4,10-dioxatricyclo[7.3.0.0,3,7]dodeca-1,3(7),5,8,11-pentaene-6,12-dicarboxylate (C18H18O6) 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 330.33 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).

As a certified reference material (CRM), 6,12-Diethyl 5,11-dimethyl-4,10-dioxatricyclo[7.3.0.0,3,7]dodeca-1,3(7),5,8,11-pentaene-6,12-dicarboxylate 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

Molecular FormulaC18H18O6
Molecular Weight330.33 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 methanol, acetonitrile, DMSO, water (slightly soluble)
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.)1959

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