2-Butenedioic acid (2E)-, polymer with 2,2-dimethyl-1,3-propanediol and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione CAS 25749-48-8

Purity 97%+In StockPharmaceutical Standards
CAS No.25749-48-8
Molecular FormulaC8H8O3
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Butenedioic acid (2E)-, polymer with 2,2-dimethyl-1,3-propanediol and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione CAS 25749-48-8 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 (2E)-, polymer with 2,2-dimethyl-1,3-propanediol and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione.

CATO supplies 2-Butenedioic acid (2E)-, polymer with 2,2-dimethyl-1,3-propanediol and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione (CAS 25749-48-8), a certified reference material (molecular formula C8H8O3C4H4O4C5H12O2, MW 372.37 g/mol) for analytical method development and quality control.

Structurally, 2-Butenedioic acid (2E)-, polymer with 2,2-dimethyl-1,3-propanediol and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione (C8H8O3C4H4O4C5H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 372.37 g/mol, it falls into the moderately-high-molecular-weight range. 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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 FormulaC8H8O3 C4H4O4 C5H12O2
Molecular Weight372.37 g/mol
AppearanceOff-white to pale 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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964

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