3,3'-Bi-1,2-benzisothiazole CAS 1195571-46-0

Purity >95%In StockPharmaceutical Standards
CAS No.1195571-46-0
Molecular FormulaC14H8N2S2
Molecular Weight268.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,3'-Bi-1,2-benzisothiazole CAS 1195571-46-0 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.

3,3'-Bi-1,2-benzisothiazole (CAS 1195571-46-0), molecular formula C14H8N2S2 and molecular weight 268.36 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3,3'-Bi-1,2-benzisothiazole (C14H8N2S2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 268.36 g/mol, it falls into the medium-molecular-weight range. 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).

As a certified reference material (CRM), 3,3'-Bi-1,2-benzisothiazole 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 FormulaC14H8N2S2
Molecular Weight268.36 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms2
Sulfur Atoms2

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