4-Methylenecyclopentane-1,2-dicarboxylic acid CAS 90474-14-9

Purity 97%+In StockPharmaceutical Standards
CAS No.90474-14-9
Molecular FormulaC8H10O4
Molecular Weight170.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Methylenecyclopentane-1,2-dicarboxylic acid CAS 90474-14-9 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 4-Methylenecyclopentane-1,2-dicarboxylic acid.

4-Methylenecyclopentane-1,2-dicarboxylic acid (CAS 90474-14-9), molecular formula C8H10O4 and molecular weight 170.16 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4-Methylenecyclopentane-1,2-dicarboxylic acid (C8H10O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

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 FormulaC8H10O4
Molecular Weight170.16 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982

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