Description

Sodium 2,3,3-Trimethyl-3H-Indole-5-Sulfonate is a high-purity, water-soluble indole derivative salt of significant commercial and research interest. This compound serves as a critical intermediate and functional component in advanced organic synthesis, particularly for the development of specialized dyes, pigments, and photoactive materials. It is essential for manufacturers and R&D laboratories in the fine chemical, specialty dye, and advanced material sectors seeking reliable, high-quality building blocks.

Application

• Key Intermediate for Cyanine Dyes: A vital precursor in the synthesis of heptamethine cyanine dyes and other NIR-absorbing/emitting chromophores used in bioimaging and optical sensors.
• Specialty Pigment & Dye Manufacturing: Employed in the production of high-performance pigments and dyes for inks, coatings, and plastics requiring specific solubility and color properties.
• Photoinitiator & Photoresist Components: Used in the formulation of photoactive compounds for photopolymerization and semiconductor photoresist applications.
• Bioconjugation & Probe Synthesis: Functions as a sulfonate-containing linker or modifier for creating water-soluble fluorescent probes and bioconjugates for diagnostic assays.
• Organic Electronic Materials: Investigated as a component in the development of organic light-emitting diodes (OLEDs) and other electronic materials due to its electron-rich indole structure.
• Research & Development: Serves as a valuable building block in academic and industrial R&D for exploring new chemical entities in medicinal and material chemistry.

Basic Information

Item	Detail
Product Name	Sodium 2,3,3-Trimethyl-3H-Indole-5-Sulfonate
CAS No.	287188-58-3
Molecular Formula	C11H12NNaO3S
Molecular Weight	261.27 g/mol
Synonyms	2,3,3-Trimethyl-3H-indole-5-sulfonic acid sodium salt; 5-Sulfo-2,3,3-trimethyl-3H-indole sodium salt; 3H-Indole-5-sulfonic acid, 2,3,3-trimethyl-, sodium salt (1:1); Sodium 5-sulfo-2,3,3-trimethylindolenine; Trimethylindolenine sulfonate sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 2,3,3-Trimethyl-3H-Indole-5-Sulfonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment, guaranteeing traceability and consistent quality for your critical applications.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed in a dry environment to prevent absorption of moisture and potential degradation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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