4,7-Dibromo-5,6-dinitrobenzo[c][1,2,5]thiadiazole CAS 76186-72-6

Purity 97%+In StockPharmaceutical Standards
CAS No.76186-72-6
Molecular FormulaC6Br2N4O4S
Molecular Weight383.96 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,7-Dibromo-5,6-dinitrobenzo[c][1,2,5]thiadiazole CAS 76186-72-6 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,7-Dibromo-5,6-dinitrobenzo[c][1,2,5]thiadiazole.

4,7-Dibromo-5,6-dinitrobenzo[c][1,2,5]thiadiazole (CAS 76186-72-6) is a high-purity analytical reference standard with the molecular formula C6Br2N4O4S and a molecular weight of 383.96 g/mol.

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 4,7-Dibromo-5,6-dinitrobenzo[c][1,2,5]thiadiazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 383.96 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.

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.

As a certified reference material (CRM), 4,7-Dibromo-5,6-dinitrobenzo[c][1,2,5]thiadiazole 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 FormulaC6Br2N4O4S
Molecular Weight383.96 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
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.)1978
Halogen ContentBr-containing
Nitrogen Atoms4
Sulfur Atoms1

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