5,5'-(Dimethylsilanediyl)diisophthalic acid CAS 1171890-34-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1171890-34-8
Molecular FormulaC18H16O8Si
Molecular Weight388.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5,5'-(Dimethylsilanediyl)diisophthalic acid CAS 1171890-34-8 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5,5'-(Dimethylsilanediyl)diisophthalic acid.

CATO supplies 5,5'-(Dimethylsilanediyl)diisophthalic acid (CAS 1171890-34-8), a certified reference material (molecular formula C18H16O8Si, MW 388.40 g/mol) for analytical method development and quality control.

Based on its molecular formula C18H16O8Si, 5,5'-(Dimethylsilanediyl)diisophthalic acid contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 388.40 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

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.

CATO manufactures 5,5'-(Dimethylsilanediyl)diisophthalic acid 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 FormulaC18H16O8Si
Molecular Weight388.40 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989

Related Dimethylsilanediyl Standards

Recommended Standards

Why CATO?