2-Butenedioic acid (2Z)-, 1,4-dibutyl ester, polymer with ethenyl acetate and 2-methyl-2,4-pentanediol CAS 67939-18-8

Purity 97%+In StockPharmaceutical Standards
CAS No.67939-18-8
Molecular FormulaC12H20O4
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Butenedioic acid (2Z)-, 1,4-dibutyl ester, polymer with ethenyl acetate and 2-methyl-2,4-pentanediol CAS 67939-18-8 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 2-Butenedioic acid (2Z)-, 1,4-dibutyl ester, polymer with ethenyl acetate and 2-methyl-2,4-pentanediol.

2-Butenedioic acid (2Z)-, 1,4-dibutyl ester, polymer with ethenyl acetate and 2-methyl-2,4-pentanediol (CAS 67939-18-8), molecular formula C12H20O4C6H14O2C4H6O2 and molecular weight 432.55 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 2-Butenedioic acid (2Z)-, 1,4-dibutyl ester, polymer with ethenyl acetate and 2-methyl-2,4-pentanediol is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 432.55 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.

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 FormulaC12H20O4 C6H14O2 C4H6O2
Molecular Weight432.55 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1976

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