Description

1,1,2-Trimethyl-1H-Benzo[E]Indole-6,8-Disulfonic Acid is a high-purity, functionalized indole derivative characterized by its disulfonic acid groups. This compound serves as a critical advanced intermediate for synthesizing specialized dyes, pigments, and functional materials. It is primarily sought by manufacturers in the fine chemical, specialty dye, and advanced material science sectors for its unique structural and electronic properties.

Application

• Key Intermediate for Functional Dyes: Synthesis of acid dyes, reactive dyes, and fluorescent markers requiring high water solubility and specific chromophore properties.
• Specialty Pigment Manufacturing: Production of high-performance pigments for inks, coatings, and plastics where sulfonic acid groups enhance dispersion and stability.
• Electro-Optic Materials: Building block for organic semiconductors, charge transport materials, and non-linear optical (NLO) compounds in electronics research.
• Biochemical Research: Potential use in developing fluorescent probes or tags for biological imaging and diagnostic applications.
• Liquid Crystal Displays (LCDs): Intermediate in the synthesis of alignment layers or dopants for liquid crystal mixtures.
• Photographic Sensitizers: Used in the formulation of specialized photographic chemicals and sensitizing dyes.

Basic Information

Product Name	1,1,2-Trimethyl-1H-Benzo[E]Indole-6,8-Disulfonic Acid
CAS No.	176978-81-7
Molecular Formula	C₁₅H₁₅NO₆S₂
Molecular Weight	369.41 g/mol
Synonyms	Benzo[e]indole-6,8-disulfonic acid, 1,1,2-trimethyl-1H-; 1,1,2-Trimethyl-1H-benzo[e]indole-6,8-disulfonic acid; 6,8-Disulfo-1,1,2-trimethyl-1H-benzo[e]indole; Trimethylbenzoindoledisulfonic Acid; BIDS Acid (abbreviation); 1,1,2-Trimethylbenzo[e]indole-6,8-disulfonate (salt form); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of 1,1,2-Trimethyl-1H-Benzo[E]Indole-6,8-Disulfonic Acid adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and mass spectrometry for identity confirmation and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific tests is provided with every shipment 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in water, methanol; slightly soluble in organic solvents

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