Description

1,3,3-Trimethyl-2-Methyleneindoline is a versatile heterocyclic organic compound that serves as a key intermediate in fine chemical synthesis. Its value lies in its reactive methylene group and indoline core structure, making it a crucial building block for advanced materials and colorants. This product is essential for manufacturers in the dyes and pigments, pharmaceutical intermediates, and photochromic materials industries seeking high-purity raw materials for research and production.

Application

• Spiropyran and Spirooxazine Synthesis: A fundamental precursor for manufacturing photochromic compounds used in lenses, optical switches, and smart windows.
• Dye and Pigment Intermediates: Core building block for producing various triarylmethane and other complex colorants.
• Pharmaceutical Intermediates: Used in the synthesis of specific active pharmaceutical ingredients (APIs) and bioactive molecules.
• Organic Light-Emitting Diodes (OLEDs): Employed in the development of novel electron-transporting or emissive materials.
• Chemical Research & Development: Serves as a versatile reagent for constructing complex heterocyclic frameworks in academic and industrial R&D.
• Functional Polymer Additives: Can be incorporated into polymers to impart specific optical or electronic properties.

Basic Information

Product Name	1,3,3-Trimethyl-2-Methyleneindoline
CAS No.	118-12-7
Molecular Formula	C12H15N
Molecular Weight	173.25 g/mol
Synonyms	2-Methylene-1,3,3-trimethylindoline; Fischer's Base; 1,3,3-Trimethyl-2-methylideneindoline; 2-Methylen-1,3,3-trimethylindolin; 1,3,3-Trimethyl-2-methyleneindoline; 1,3,3-Trimethylindoline-2-methylene; 2-Methylen-1,3,3-trimethyl-2,3-dihydro-1H-indole; Fischer Base
EINECS	204-230-9

Quality Control

Our 1,3,3-Trimethyl-2-Methyleneindoline is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, GC for residual solvents, and spectroscopic identification (IR, NMR), to ensure it meets exacting standards for research and industrial use. A comprehensive Certificate of Analysis (COA) is provided with every shipment to guarantee traceability and consistency.

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 heat, sparks, and open flame. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	48 - 52 °C
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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