1,3-Benzenedicarboxylic acid, polymer with (9Z,12Z)-9,12-octadecadienoic acid dimer and 1,2-propanediol CAS 68400-68-0

Purity 97%+In StockPharmaceutical Standards
CAS No.68400-68-0
Molecular Formula2*C18H32O2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,3-Benzenedicarboxylic acid, polymer with (9Z,12Z)-9,12-octadecadienoic acid dimer and 1,2-propanediol CAS 68400-68-0 chemical structure

Description

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.

1,3-Benzenedicarboxylic acid, polymer with (9Z,12Z)-9,12-octadecadienoic acid dimer and 1,2-propanediol (CAS 68400-68-0) is a high-purity analytical reference standard with the molecular formula C18H32O2C8H6O4C3H8O2 and a molecular weight of 522.68 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, 1,3-Benzenedicarboxylic acid, polymer with (9Z,12Z)-9,12-octadecadienoic acid dimer and 1,2-propanediol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 522.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

Physical & Chemical Properties

Molecular Formula2*C18H32O2 C8H6O4 C3H8O2
Molecular Weight522.68 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1976

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