4-(trifluoromethyl)phenyl 5-chloro-4-nitrothiophene-2-sulphonate CAS 680211-74-9

Purity 97%+In StockPharmaceutical Standards
CAS No.680211-74-9
Molecular FormulaC11H5ClF3NO5S2
Molecular Weight387.74 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(trifluoromethyl)phenyl 5-chloro-4-nitrothiophene-2-sulphonate CAS 680211-74-9 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

4-(trifluoromethyl)phenyl 5-chloro-4-nitrothiophene-2-sulphonate (CAS 680211-74-9) is a high-purity analytical reference standard with the molecular formula C11H5ClF3NO5S2 and a molecular weight of 387.74 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, 4-(trifluoromethyl)phenyl 5-chloro-4-nitrothiophene-2-sulphonate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 387.74 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

As a certified reference material (CRM), 4-(trifluoromethyl)phenyl 5-chloro-4-nitrothiophene-2-sulphonate 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 FormulaC11H5ClF3NO5S2
Molecular Weight387.74 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Halogen ContentF/Cl-containing
Nitrogen Atoms1
Sulfur Atoms2

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