7-Benzothiazolesulfonic acid, 2-[4-[2-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl]phenyl]-6-methyl-, sodium salt CAS 21493-04-9

Purity 97%+In StockPharmaceutical Standards
CAS No.21493-04-9
Molecular FormulaC18H14N5O4S2 Na
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-Benzothiazolesulfonic acid, 2-[4-[2-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl]phenyl]-6-methyl-, sodium salt CAS 21493-04-9 chemical structure

Description

7-Benzothiazolesulfonic acid, 2-[4-[2-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl]phenyl]-6-methyl-, sodium salt (CAS 21493-04-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C18H14N5O4S2 Na. Each batch is supplied with a Certificate of Analysis (COA).

Physical & Chemical Properties

Molecular FormulaC18H14N5O4S2 Na
Molecular Weight451.45 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)14.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Nitrogen Atoms5
Sulfur Atoms2

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