71950-67-9 Thielavin B Benzoic acid, 4-((2,4-dihydroxy-3,6-dimethylbenzoyl)oxy)-2-methoxy-3,5,6-trimethyl-, 4-carboxy-3-methoxy-2,5,6-trimethylphenyl ester Thielavin-B CAS 71950-67-9

Purity 97%+In StockPharmaceutical Standards
CAS No.71950-67-9
Molecular FormulaC31H34O10
Molecular Weight566.60 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

71950-67-9 Thielavin B Benzoic acid, 4-((2,4-dihydroxy-3,6-dimethylbenzoyl)oxy)-2-methoxy-3,5,6-trimethyl-, 4-carboxy-3-methoxy-2,5,6-trimethylphenyl ester Thielavin-B CAS 71950-67-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 566.60 g/mol gives 71950-67-9 Thielavin B Benzoic acid, 4-((2,4-dihydroxy-3,6-dimethylbenzoyl)oxy)-2-methoxy-3,5,6-trimethyl-, 4-carboxy-3-methoxy-2,5,6-trimethylphenyl ester Thielavin-B distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

71950-67-9 Thielavin B Benzoic acid, 4-((2,4-dihydroxy-3,6-dimethylbenzoyl)oxy)-2-methoxy-3,5,6-trimethyl-, 4-carboxy-3-methoxy-2,5,6-trimethylphenyl ester Thielavin-B (CAS 71950-67-9) is a high-purity analytical reference standard with the molecular formula C31H34O10 and a molecular weight of 566.60 g/mol.

71950-67-9 Thielavin B Benzoic acid, 4-((2,4-dihydroxy-3,6-dimethylbenzoyl)oxy)-2-methoxy-3,5,6-trimethyl-, 4-carboxy-3-methoxy-2,5,6-trimethylphenyl ester Thielavin-B (C31H34O10) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 FormulaC31H34O10
Molecular Weight566.60 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, 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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1977

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