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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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Luminescent Compounds/Detection

Chemiluminescence is the phenomenon of energy released as light when the excited state of molecules by oxidation returns to the ground state. Organic substances which exhibit chemiluminescene are Cypridina luciferin, firefly luciferin, oxalate, luminol and lucigenin etc.

Cypridina luciferin analogs achieve chemiluminescence through reaction with superoxide (O₂^–) or singlet oxygen (¹O₂). Using this characteristic, CLA and MCLA have been used in the research of the functions of leukocytes. The maximum emission wavelengths of CLA and MCLA are 380nm and 465nm, respectively. Furthermore, Red-CLA developed by Teranishi emits at an even longer wavelength. Red-CLA exhibits high emission intensity by reaction with superoxide, and can be used for efficient analysis of superoxide at the longest wavelength (610nm).

Firefly luciferin reacts with ATP in the presence of luciferase and magnesium ion to provide oxyluciferin via luciferyl-adenylic acid. The light with a wavelength of 562nm is emitted when activated molecules return to the ground state by decomposition of oxyluciferin. Using this characteristic, firefly luciferin is used in the trace detection of ATP and the activity measurement of nucleotide phosphatase etc.

Luminol reacts with hydrogen peroxide in the presence of metals such as iron or its complexes to emit strong blue light with a wavelength of 460nm. This reaction is called the luminol test and is applied to the identification of blood stains in forensic science. Luminol is also used for trace detection of hydrogen peroxide and metals which catalyze this reaction.

On the other hand, oxalates are oxidized by hydrogen peroxide etc. to produce 1,2-dioxetanediones. When these substances are decomposed, they transfer energy to coexisting fluorescent substances which are elevated to the excited state. These excited fluorescent substances emit light during relaxation to the ground state. Thus, the emission wavelength can be changed by choosing coexisting fluorescent substances. This technique is applied to HPLC detection systems.