3-Chloro-5,7-dimethoxybenzo[d]isothiazole CAS 1184915-20-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1184915-20-5
Molecular FormulaC9H8ClNO2S
Molecular Weight229.68 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Chloro-5,7-dimethoxybenzo[d]isothiazole CAS 1184915-20-5 chemical structure

Description

The occurrence of 3-Chloro-5,7-dimethoxybenzo[d]isothiazole is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-Chloro-5,7-dimethoxybenzo[d]isothiazole (CAS 1184915-20-5) is a high-purity analytical reference standard with the molecular formula C9H8ClNO2S and a molecular weight of 229.68 g/mol.

Based on its molecular formula C9H8ClNO2S, 3-Chloro-5,7-dimethoxybenzo[d]isothiazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 229.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 FormulaC9H8ClNO2S
Molecular Weight229.68 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Halogen ContentCl-containing
Nitrogen Atoms1
Sulfur Atoms1

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