Description

Diftalone is a high-purity organic chemical compound, identified by CAS No. 21626-89-1. This versatile intermediate is valued for its role in the synthesis of advanced materials and active pharmaceutical ingredients (APIs), offering reliability for complex chemical processes. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for research and production applications.

Application

Diftalone serves as a critical building block in various industrial and research contexts. Its primary applications include:

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Acts as a key precursor in the development of advanced pesticides and herbicides.
• Polymer & Material Science: Employed in the production of specialty polymers and high-performance materials.
• Organic Synthesis & Research: A valuable reagent for constructing complex molecular architectures in academic and industrial R&D laboratories.
• Chemical Intermediate: Utilized in fine chemical manufacturing for various downstream products.

Basic Information

Product Name	Diftalone
CAS No.	21626-89-1
Molecular Formula	C13H8N2O3
Molecular Weight	240.21 g/mol
Synonyms	1,2-Dihydro-2-oxo-3H-indole-3-spiro-9'-(4'H,9'aH)fluorene; 3H-Indole-3-spiro-9'-fluorene-2(1H),4'(9'aH)-dione; 1,2-Dihydro-2-oxospiro[3H-indole-3,9'-fluorene]-4'(9'aH)-one; Diftalon; Difalone; Spiro[fluorene-9,3'-indolin]-2'-one; Spiro[indole-3,9'-fluorene]-2(1H),4'(9'aH)-dione
EINECS	244-492-9

Quality Control

Our Diftalone is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, IR, and loss on drying, to meet stringent specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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