4-(((4-Chlorobenzoyl)oxy)imino)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide CAS 338776-76-4

Purity 97%+In StockPharmaceutical Standards
CAS No.338776-76-4
Molecular FormulaC14H10ClNO4S2
Molecular Weight355.82 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(((4-Chlorobenzoyl)oxy)imino)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide CAS 338776-76-4 chemical structure

Description

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 4-(((4-Chlorobenzoyl)oxy)imino)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 355.82 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

CATO supplies 4-(((4-Chlorobenzoyl)oxy)imino)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (CAS 338776-76-4), a certified reference material (molecular formula C14H10ClNO4S2, MW 355.82 g/mol) for analytical method development and quality control.

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), 4-(((4-Chlorobenzoyl)oxy)imino)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide 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 FormulaC14H10ClNO4S2
Molecular Weight355.82 g/mol
Purity97%+
StorageStore at 2-8°C, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms2

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