For chemists, formulators, and R&D professionals, a thorough understanding of a chemical intermediate's properties is fundamental to its successful application. 9,9-Dimethyl-9H-Xanthene (CAS 19814-75-6) is a heterocyclic organic compound with a specific set of physical and chemical characteristics that dictate its utility in various synthesis processes. As a supplier of high-quality organic intermediates, we aim to provide clear and comprehensive information to facilitate your research and procurement decisions.

Key Chemical and Physical Properties of Dimethyl Xanthene

9,9-Dimethyl-9H-Xanthene, also known by synonyms like 9,9-Dimethylxanthene, possesses the following key properties:

  • Chemical Name: 9,9-Dimethyl-9H-Xanthene
  • CAS Number: 19814-75-6
  • Molecular Formula: C15H14O
  • Molecular Weight: 210.27 g/mol
  • Appearance: Typically described as a light yellow or colorless to yellow liquid. Its physical state can sometimes appear as a powder to lump, particularly at lower ambient temperatures, before transitioning to a clear liquid upon slight warming.
  • Melting Point: Approximately 35-38 °C (lit.). This relatively low melting point means it can easily become liquid at slightly elevated room temperatures.
  • Boiling Point: Around 114-115 °C at 0.6 mmHg (lit.), indicating its stability under vacuum distillation conditions.
  • Density: Estimated around 1.0232.
  • Refractive Index: Estimated at 1.5725.
  • Flash Point: Greater than 230 °F, signifying a relatively high flash point and moderate flammability risk when handled properly.
  • Solubility: It is generally insoluble in water, which is typical for many organic compounds of this size and polarity.

Implications for Use and Handling

The properties of 9,9-Dimethyl-9H-Xanthene have direct implications for its handling, storage, and application:

  • Handling: Given its melting point, it might require gentle warming to liquefy before use, especially in cooler environments. Standard laboratory precautions for handling organic chemicals should be followed, including good ventilation and avoiding contact with skin and eyes.
  • Storage: It should be stored in a well-closed, light-resistant, dry, and cool place to maintain its quality and prevent degradation. Sealed containers are recommended to prevent moisture absorption or oxidation.
  • Reactivity: As a heterocyclic organic compound, it is a valuable intermediate for various chemical reactions, serving as a building block in complex organic synthesis. Its aromatic rings and the oxygen atom provide sites for electrophilic substitution and other chemical modifications.

For professionals seeking to buy Dimethyl Xanthene for R&D or manufacturing, understanding these properties is the first step. As a leading chemical supplier, we ensure our product meets these specifications. If you require this intermediate, consider purchasing from a reliable manufacturer to ensure purity and quality for your critical applications. Requesting a quote can provide you with competitive pricing and further details.