Description

9,9-Dimethyl-9H-Xanthene is a versatile organic compound belonging to the xanthene class, characterized by its rigid, planar tricyclic structure. This compound serves as a crucial synthetic intermediate and building block in advanced organic synthesis, valued for its ability to impart specific photophysical and electronic properties to target molecules. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for developing novel functional materials, dyes, and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Organic Light-Emitting Diodes (OLEDs): Used as a core structure or precursor for developing novel electron-transporting or host materials.
• Fluorescent Dyes & Probes: Serves as a foundational scaffold for creating xanthene-based fluorescent tags and sensors for biological imaging and diagnostics.
• Agrochemical Synthesis: Intermediate in the production of advanced pesticides and herbicides.
• Material Science Research: Employed in academic and industrial R&D for creating novel polymers and advanced organic materials with specific optical properties.
• Photoinitiators: Potential component in formulations for UV-curable inks, coatings, and adhesives.

Basic Information

Product Name	9,9-Dimethyl-9H-Xanthene
CAS No.	19814-75-6
Molecular Formula	C₁₅H₁₄O
Molecular Weight	210.27 g/mol
Synonyms	9,9-Dimethylxanthene; Dimethylxanthene; Xanthene, 9,9-dimethyl-; 9H-Xanthene, 9,9-dimethyl-; NSC 407298; 2,7-Dimethyl-9H-xanthene (alternative numbering); Bicyclo[2.2.2]octane-1,4-dione, 5,8-dihydroxy-2,3,6,7-tetramethyl- (related derivative)
EINECS	243-329-7

Quality Control

Our 9,9-Dimethyl-9H-Xanthene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity assessment and spectroscopic methods (NMR, IR) for structural confirmation, to ensure it meets high-purity standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles 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 strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	95 - 99 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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