(2R,3S)-1,4-bis(acetylthio)butane-2,3-diyl diacetate CAS 37180-63-5

Purity 97%+In StockPharmaceutical Standards
CAS No.37180-63-5
Molecular FormulaC12H18O6S2
Molecular Weight322.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2R,3S)-1,4-bis(acetylthio)butane-2,3-diyl diacetate CAS 37180-63-5 chemical structure

Description

(2R,3S)-1,4-bis(acetylthio)butane-2,3-diyl diacetate (CAS 37180-63-5) is a high-purity analytical reference standard with the molecular formula C12H18O6S2 and a molecular weight of 322.40 g/mol.

Structurally, (2R,3S)-1,4-bis(acetylthio)butane-2,3-diyl diacetate (C12H18O6S2) contains a sulfone group, 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 322.40 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC12H18O6S2
Molecular Weight322.40 g/mol
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.)1967
Sulfur Atoms2

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