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Caution Notice:
It has come to our notice that certain fraudulent individuals or entities are misusing our Company’s name and TCI’s registered trademarks by promoting and offering for sale regulated and hazardous chemical substances, including Potassium Cyanide, through online platforms like YouTube. We hereby categorically clarify that TCI has no association or connection whatsoever with the products being displayed or sold in these or similar videos. These products have been falsely represented as being associated with TCI, and the unauthorized use of our trademark and brand name is both illegal and misleading. TCI Chemicals is a responsible global organization committed to adhering to all applicable international and domestic regulatory frameworks. We do not manufacture, distribute, or engage in the sale of regulated chemical substances in India or in any other jurisdiction unless specifically authorized by the relevant laws and regulatory agencies. All our operations and offerings are governed by stringent safety, quality, and compliance protocols in accordance with applicable laws. Further, TCI Chemicals markets and sells its products exclusively through its official website and authorized distributors. We do not sell, endorse, or supply our products through any third-party platforms, unauthorized agents, or resellers. Any individual or organization purchasing products outside these official channels does so at their own risk, and TCI disclaims all responsibility and liability for any consequences arising therefrom. Members of the public, customers, and partners are strongly advised to exercise caution and conduct due diligence before engaging in any transactions involving products claiming association with TCI Chemicals. The official list of our authorized distributors is publicly available and may be accessed at: https://www.tcichemicals.com/IN/en/distributor/index. We are currently pursuing appropriate legal remedies against those misusing our brand, and we reserve all rights available to us under applicable intellectual property and criminal laws. If you become aware of any such fraudulent activity or require clarification, you may reach out to us at: Sales-IN@TCIchemicals.com. Your vigilance and cooperation are essential in safeguarding the public interest and protecting the integrity of the TCI brand.

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Non-benzenoid Aromatic Compounds [Chemical Structural Class]

　Azulene, which has a speciﬁc structure of ring-fused unsaturated seven-membered and ﬁve-membered rings, is a typical non-benzenoid aromatic compound. Whereas naphthalene or other hydrocarbon compounds are generally colorless, azulene, a structural isomer of naphthalene, is dark blue, and the name comes from the Spanish word azul, meaning "blue". Three practical manufacturing methods have been known so far as follows:The ﬁrst method, which was developed by Ziegler and Hafner, is a reaction of ring-opened pyridinium salts or pyrylium salts with cyclopentadienides. The second one, which was developed by Nozoe and Seto et al. is a reaction of tropone derivatives bearing halogen, methoxy, or tosyloxy groups at the 2 position and active methylene compounds, such as cyanoacetates and malonates, in the presence of base. The last method, which was developed by Yasunami and Takase et al., is a reaction of oxaazulanones with enamines.
　Tropolone derivatives are also classiﬁed as non-benzenoid aromatic compounds. Hinokitiol, a typical tropolone compound, has been known to exhibit an antibacterial effect. Also colchicine, an alkaloid compound with a tropolone ring, shows strong antitumor effects. Thus, tropolone compounds have possibilities in the pharmaceutical ﬁeld, especially for anticancer drugs.