Eriochrome blue-black B (C.I. 14640), metal indicator CAS 3564-14-5

Purity 97%+In StockPharmaceutical Standards
CAS No.3564-14-5
Molecular FormulaC20H13N2NaO5S
Molecular Weight416.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Eriochrome blue-black B (C.I. 14640), metal indicator CAS 3564-14-5 chemical structure

Description

High-purity Eriochrome blue-black B (C.I. 14640), metal indicator (CAS 3564-14-5) pharmaceutical standards reference standard. Molecular formula: C20H13N2NaO5S. Molecular weight: 416.38 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.

Physical & Chemical Properties

Molecular FormulaC20H13N2NaO5S
Molecular Weight416.38 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)15.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms2
Sulfur Atoms1

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