3,4-Di-O-acetyl-1,2-O-isopropylidene-5-O-tosyl-a-L-sorbose CAS 53821-66-2

Purity 97%+In StockPharmaceutical Standards
CAS No.53821-66-2
Molecular FormulaC12H18O7
Molecular Weight274.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Di-O-acetyl-1,2-O-isopropylidene-5-O-tosyl-a-L-sorbose CAS 53821-66-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 274.27 g/mol gives 3,4-Di-O-acetyl-1,2-O-isopropylidene-5-O-tosyl-a-L-sorbose distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,4-Di-O-acetyl-1,2-O-isopropylidene-5-O-tosyl-a-L-sorbose (CAS 53821-66-2) is a high-purity analytical reference standard with the molecular formula C12H18O7 and a molecular weight of 274.27 g/mol.

Structurally, 3,4-Di-O-acetyl-1,2-O-isopropylidene-5-O-tosyl-a-L-sorbose (C12H18O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 274.27 g/mol, it falls into the medium-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.

As a certified reference material (CRM), 3,4-Di-O-acetyl-1,2-O-isopropylidene-5-O-tosyl-a-L-sorbose 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 FormulaC12H18O7
Molecular Weight274.27 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
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.)1972

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