Description

Erioglaucine Disodium Salt CAS NO 3844-45-9 is a synthetic, water-soluble blue dye belonging to the triarylmethane class, widely recognized for its intense and stable color. It serves as a critical colorant and diagnostic agent, valued for its high purity and consistent performance in sensitive applications. This product is essential for manufacturers and researchers in the pharmaceutical, food, cosmetic, and analytical chemistry industries seeking reliable and compliant coloring solutions.

Application

• Pharmaceutical Colorant: Used for coloring tablets, capsules, and liquid medications for brand identification and patient compliance.
• Food and Beverage Additive: Employed as a blue food color (FD&C Blue No. 1, E133) in confectionery, beverages, and dairy products.
• Cosmetic and Personal Care: A key pigment in soaps, shampoos, and other personal care items to achieve desired shades.
• Diagnostic and Biological Staining: Utilized in histological stains and as a tracer or marker in various biomedical and research applications.
• Industrial Dye: Applied in the coloring of paper, textiles, and inks where a vibrant blue hue is required.
• Analytical Reagent: Functions as an indicator or reagent in laboratory tests and chemical analyses.

Basic Information

Product Name	Erioglaucine Disodium Salt
CAS No.	3844-45-9
Molecular Formula	C37H34N2Na2O9S3
Molecular Weight	792.85 g/mol
Synonyms	Acid Blue 9; FD&C Blue No. 1; Brilliant Blue FCF; Erioglaucine; C.I. 42090; E133; Disodium 2-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl]-[4-[ethyl[(3-sulfophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzenesulfonate
EINECS	223-339-8

Quality Control

Our Erioglaucine Disodium Salt is manufactured under strict quality management systems. Each batch is tested to ensure compliance with relevant standards such as FCC, USP/NF, and EU (E133) specifications for identity, purity, and safety. Comprehensive testing includes assay, heavy metals, and specific impurity profiles. A Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Blue powder or granules
Identification (IR)	Conforms
Assay (HPLC)	≥ 85.0%
Loss on Drying	≤ 15.0 %
Subsidiary Colors	Conforms
Ether Extractable Matter	≤ 0.2 %
Arsenic (As)	≤ 3 mg/kg
Lead (Pb)	≤ 10 mg/kg
Heavy Metals (as Pb)	≤ 40 mg/kg

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