Description

Blue 1 is a synthetic organic colorant widely recognized for its vibrant blue hue. This high-purity dye is essential for achieving consistent and stable coloration in a diverse range of industrial and consumer products. It is a critical raw material for manufacturers in the food, pharmaceutical, cosmetic, and textile industries who require reliable, compliant, and high-quality color solutions. Our supply of Blue 1 CAS NO 1341-88-4 ensures strict quality control and batch-to-batch consistency for global B2B applications.

Application

• Food and Beverage Coloring: Used in candies, beverages, dairy products, and baked goods to provide an attractive and uniform blue color.
• Pharmaceuticals and Nutraceuticals: Employed as a colorant in tablet coatings, capsules, syrups, and medicinal powders for product identification and aesthetic appeal.
• Cosmetics and Personal Care: A key ingredient in lipsticks, eyeshadows, soaps, shampoos, and other products where vivid and safe coloration is required.
• Industrial and Specialty Inks: Utilized in the formulation of printing inks, including those for food packaging and security applications.
• Textile Dyeing: Applied in the dyeing of certain synthetic fibers and specialty fabrics.
• Laboratory and Diagnostic Reagents: Serves as a staining agent or colorimetric indicator in various biochemical and clinical tests.

Basic Information

Product Name	Blue 1
CAS No.	1341-88-4
Molecular Formula	C37H34N2Na2O9S3
Molecular Weight	792.85 g/mol
Synonyms	Brilliant Blue FCF; FD&C Blue No. 1; E133; Acid Blue 9; Disodium salt; C.I. 42090; Food Blue 2; Patent Blue AC; D&C Blue No. 4
EINECS	215-700-4

Quality Control

Our Blue 1 is manufactured under strict quality management systems to ensure it meets the highest purity and safety standards for its intended applications. Each batch is rigorously tested against specifications for identity, assay, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) to support compliance with relevant global standards, including FDA 21 CFR, EU Directive (EC) No 1333/2008, and JSSFA, where applicable.

Storage

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

Specification

Item	Specification
Appearance	Blue powder or granules
Identification (IR)	Conforms
Assay (HPLC)	≥ 85.0%
Loss on Drying	≤ 15.0%
Subsidiary Colors	≤ 6.0%
Ether Extractable Matter	≤ 0.4%
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.