(4aR,8aR)-2,2-Dimethyl-4a,8a-dihydropyrano[3,2-d][1,3]dioxin-8(4H)-one CAS 51450-38-5

Purity 97%+In StockPharmaceutical Standards
CAS No.51450-38-5
Molecular FormulaC9H12O4
Molecular Weight184.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4aR,8aR)-2,2-Dimethyl-4a,8a-dihydropyrano[3,2-d][1,3]dioxin-8(4H)-one CAS 51450-38-5 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 (4aR,8aR)-2,2-Dimethyl-4a,8a-dihydropyrano[3,2-d][1,3]dioxin-8(4H)-one.

(4aR,8aR)-2,2-Dimethyl-4a,8a-dihydropyrano[3,2-d][1,3]dioxin-8(4H)-one (CAS 51450-38-5) is a high-purity analytical reference standard with the molecular formula C9H12O4 and a molecular weight of 184.19 g/mol.

The molecular framework of (4aR,8aR)-2,2-Dimethyl-4a,8a-dihydropyrano[3,2-d][1,3]dioxin-8(4H)-one (C9H12O4) 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.

As a certified reference material (CRM), (4aR,8aR)-2,2-Dimethyl-4a,8a-dihydropyrano[3,2-d][1,3]dioxin-8(4H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC9H12O4
Molecular Weight184.19 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.)1971

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