Description

Blue 2 Lake CAS NO 1342-11-6 is a high-purity, water-insoluble pigment lake derived from FD&C Blue No. 2 (Indigotine). This compound is valued for its stable, vibrant blue hue and excellent dispersibility in various matrices. It is primarily used as a colorant in industries requiring non-migrating, non-bleeding color, such as pharmaceuticals, cosmetics, and food-contact plastics. Our product is manufactured under strict quality controls to ensure batch-to-batch consistency and compliance with global regulatory standards.

Application

• Primary colorant in pharmaceutical tablets and capsules for product identification and branding.
• Pigment for cosmetic products including pressed powders, lipsticks, and soaps.
• Coloring agent for food-contact polymers and plastics, such as bottle caps and packaging.
• Ingredient in industrial coatings and inks where a stable blue pigment is required.
• Color additive for educational and artistic materials like clays and modeling compounds.
• Used in the coloration of dietary supplement coatings and shells.

Basic Information

Product Name	Blue 2 Lake
CAS No.	1342-11-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	FD&C Blue No. 2 Aluminum Lake; Indigotine Lake; CI 73015 Lake; E132 Lake; Acid Blue 74 Lake; Food Blue 1 Lake; Disodium 3,3'-dioxo-2,2'-bis-indolyden-5,5'-disulfonate Aluminum Lake
EINECS	Contact for details

Quality Control

Our Blue 2 Lake is produced in facilities adhering to cGMP guidelines. Each batch undergoes rigorous analytical testing to ensure it meets stringent specifications for identity, purity, and heavy metal content, relevant for pharmaceutical and cosmetic applications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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 exposure to maintain color stability.

Specification

Item	Specification
Description	Fine blue powder
Identification (IR)	Conforms to Standard
Assay (Color Strength)	95.0% - 105.0%
Loss on Drying	≤ 5.0%
Subsidiary Colors	≤ 3.0%
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.