Description

Potassium Indigotetrasulfonate is a high-purity, water-soluble salt of the indigotetrasulfonate anion, widely recognized for its intense blue color and utility as a specialized dye and analytical reagent. Its primary commercial value lies in its role as a critical component in diagnostic and research applications, where consistent quality and performance are paramount. This product is essential for manufacturers and research laboratories in the pharmaceutical, diagnostic, and fine chemical sectors, particularly those developing or producing biological stains and specialized colorimetric assays.

Application

• Biological Staining: Used as a vital dye in histological and cytological procedures for microscopic examination.
• Diagnostic Reagents: A key chromogenic component in the formulation of clinical diagnostic kits and test strips.
• Analytical Chemistry: Employed as a redox indicator and colorimetric reagent in various titrimetric and spectrophotometric analyses.
• Research & Development: Serves as a tool in biochemical and pharmaceutical research, including enzyme activity assays and cell viability tests.
• Specialty Dyes: Used in the formulation of high-value inks and dyes for specialized industrial or laboratory marking.

Basic Information

Product Name	Potassium Indigotetrasulfonate
CAS No.	67627-19-4
Molecular Formula	C16H6K4N2O14S4
Molecular Weight	804.90 g/mol
Synonyms	Indigo Carmine Potassium Salt; Indigotindisulfonate Potassium Salt; FD&C Blue No. 2; Acid Blue 74, Potassium Salt; C.I. 73015; Indigotine; E132
EINECS	Contact for details

Quality Control

Our Potassium Indigotetrasulfonate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for diagnostic and research use. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Blue to dark blue powder or crystalline solid
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition (Sulfated Ash)	Contact for details
Heavy Metals	≤ 20 ppm
Specific Absorbance	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.