Description

1,1',2,2'-Tetrahydro[2,2'-Bi-3H-Indole]-3,3'-Dione is a specialized heterocyclic organic compound with the CAS registry number 4058-46-2. This compound serves as a key synthetic intermediate and building block in advanced chemical synthesis, valued for its unique fused indole-dione structure. It is primarily required by pharmaceutical R&D and fine chemical manufacturers for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of complex drug candidates, particularly those targeting neurological and oncological pathways.
• Organic Synthesis Building Block: Used for constructing sophisticated heterocyclic frameworks in medicinal chemistry and material science research.
• Agrochemical Research: Employed in developing new active ingredients for crop protection products.
• Dye and Pigment Synthesis: Serves as a starting material for creating specialized colorants and functional dyes.
• Academic & Industrial R&D: Utilized in research laboratories for method development and exploring new chemical entities.
• Material Science: Investigated for potential use in organic electronic materials and photoactive compounds.

Basic Information

Product Name	1,1',2,2'-Tetrahydro[2,2'-Bi-3H-Indole]-3,3'-Dione
CAS No.	4058-46-2
Molecular Formula	C16H10N2O2
Molecular Weight	262.27 g/mol
Synonyms	2,2'-Biindoline-3,3'-dione; 3,3'-Dioxo-2,2'-biindoline; 2,2'-Bi-1H-indole-3,3'(2H,2'H)-dione; [2,2'-Biindoline]-3,3'-dione; 2,2'-Biindolinyl-3,3'-dione; 2,2'-Dihydroxy-2,2'-biindole; 3,3'-Dihydroxy-2,2'-biindole (tautomer); Indirubin impurity/analog
EINECS	Contact for details

Quality Control

Our 1,1',2,2'-Tetrahydro[2,2'-Bi-3H-Indole]-3,3'-Dione is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, detailing key parameters such as assay and impurity profiles. Our quality commitment supports applications requiring high-purity intermediates for regulated environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials. The container should be kept tightly sealed to protect the product from moisture and atmospheric contamination.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 1.5%

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