1,2,3,4-cyclobutane tetracarboxylic dianhydride 1,2,3,4-cyclobutanetetracarboxylic acid dianhydride; 1,2,3,4-cyclobutanetetracarboxylic dianhydride; 1,2,3,4-cyclobutantetracarboxylic acid dianhydride; 4415-87-6 EBD217581 cyclobutane tetracarboxylic dianhydride; cyclobutane-1,2,3,4-tetracarboxylic dianhydride cyclobutane-1,2,3,4-tetracarboxylic dianhydride; cyclobutanetetracarboxylic dianhydride; CAS 4415-87-6

Purity 97%+In StockPharmaceutical Standards
CAS No.4415-87-6
Molecular FormulaC8H4O6
Molecular Weight196.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2,3,4-cyclobutane tetracarboxylic dianhydride 1,2,3,4-cyclobutanetetracarboxylic acid dianhydride; 1,2,3,4-cyclobutanetetracarboxylic dianhydride; 1,2,3,4-cyclobutantetracarboxylic acid dianhydride; 4415-87-6 EBD217581 cyclobutane tetracarboxylic dianhydride; cyclobutane-1,2,3,4-tetracarboxylic dianhydride cyclobutane-1,2,3,4-tetracarboxylic dianhydride; cyclobutanetetracarboxylic dianhydride; CAS 4415-87-6 chemical structure

Description

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

1,2,3,4-cyclobutane tetracarboxylic dianhydride 1,2,3,4-cyclobutanetetracarboxylic acid dianhydride; 1,2,3,4-cyclobutanetetracarboxylic dianhydride; 1,2,3,4-cyclobutantetracarboxylic acid dianhydride; 4415-87-6 EBD217581 cyclobutane tetracarboxylic dianhydride; cyclobutane-1,2,3,4-tetracarboxylic dianhydride cyclobutane-1,2,3,4-tetracarboxylic dianhydride; cyclobutanetetracarboxylic dianhydride; (CAS 4415-87-6) is a high-purity analytical reference standard with the molecular formula C8H4O6 and a molecular weight of 196.11 g/mol.

1,2,3,4-cyclobutane tetracarboxylic dianhydride 1,2,3,4-cyclobutanetetracarboxylic acid dianhydride; 1,2,3,4-cyclobutanetetracarboxylic dianhydride; 1,2,3,4-cyclobutantetracarboxylic acid dianhydride; 4415-87-6 EBD217581 cyclobutane tetracarboxylic dianhydride; cyclobutane-1,2,3,4-tetracarboxylic dianhydride cyclobutane-1,2,3,4-tetracarboxylic dianhydride; cyclobutanetetracarboxylic dianhydride; (C8H4O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC8H4O6
Molecular Weight196.11 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, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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