Description

Blue 1 Lake is a stable, insoluble pigment derived from the water-soluble FD&C Blue No. 1 (Brilliant Blue FCF). This product, also known as Blue 1 Lake CAS NO 1341-91-9, is a vital colorant for applications where leaching or migration of color is undesirable. It is essential for manufacturers requiring vibrant, non-bleeding blue hues in complex formulations. Key industries that rely on this pigment include pharmaceuticals, cosmetics, and food-contact plastics.

Application

• Pharmaceutical Tablets and Capsules: Used for color coating and identification of solid dosage forms.
• Cosmetics and Personal Care: Provides stable color in makeup products like lipsticks, eyeshadows, and soaps.
• Food-Contact Polymers and Plastics: Imparts color to packaging materials, kitchen utensils, and decorative items where direct food addition is not intended.
• Industrial Coatings and Inks: Serves as a pigment in specialty printing inks and coatings.
• Decorative and Artistic Materials: Used in crayons, modeling clays, and other pigmented crafts.

Basic Information

Product Name	Blue 1 Lake
CAS No.	1341-91-9
Molecular Formula	C37H34N2Na2O9S3 (Parent dye)
Molecular Weight	792.85 g/mol (Parent dye)
Synonyms	FD&C Blue No. 1 Aluminum Lake; Brilliant Blue FCF Lake; CI 42090:1; E132 Lake; Food Blue 2 Lake; Acid Blue 9 Aluminum Lake; Aluminium Lake of Brilliant Blue FCF
EINECS	215-710-9 (for FD&C Blue No. 1)

Quality Control

Our Blue 1 Lake is manufactured and tested to meet stringent quality standards appropriate for its intended applications. We ensure compliance with relevant specifications such as the Food Chemicals Codex (FCC) and other international guidelines for color additives. Our products undergo rigorous quality testing to ensure batch-to-batch consistency. Certificates of Analysis (COA) detailing purity, strength, and heavy metal limits are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. The product is light-sensitive and should be stored away from direct light to maintain color stability.

Specification

Item	Specification
Description	Fine blue powder
Identification	Conforms (IR / TLC)
Assay (Color Strength)	90 - 110% of stated value
Loss on Drying	≤ 5.0 %
Subsidiary Colors	Conforms
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Lead (Pb)	≤ 10 ppm

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