Paraxanthine Powder

Healthkintai^® is a manufacturer and supplier of paraxanthine powder(1,7-DMX). Paraxanthine is the main metabolite of caffeine in the human body. It is not directly derived from plants, but is produced by the breakdown of caffeine by cytochrome P450 enzymes (mainly CYP1A2) in the liver. As a purine alkaloid, it exhibits remarkable efficacy: studies have shown that it has significant neuroprotective effects, protecting dopaminergic neurons by activating renin receptor channels and increasing glutathione levels in neurons, thus showing potential to reduce the risk of neurodegenerative diseases such as Parkinson's disease; at the same time, it is also a more effective central nervous system stimulant than caffeine, improving motor activity and cognitive function with fewer side effects. We have 97%98% paraxanthine powder. Contact us at info@kintaibio.com.

CLICK HERE TO CONTACT US>>>

Preparation of Starting Materials and Acylation Reaction
The synthesis begins with the key starting material, ethyl 4-amino-1-methyl-1H-imidazole-5-carboxylate, which is commercially available at high purity (≥98%). This compound is reacted with methylcarbamoyl chloride in an anhydrous organic solvent such as dichloromethane under controlled temperature conditions. The methylcarbamoyl chloride acts as the acylating agent, attacking the primary amino group on the imidazole ring. This reaction proceeds via nucleophilic acyl substitution, selectively introducing a carbamoyl side chain onto the imidazole core. The reaction is monitored by thin-layer chromatography to ensure complete conversion of the starting material, typically requiring several hours with stirring at room temperature or slight cooling to manage exothermicity.

Isolation and Purification of the Acylation Intermediate
After the acylation reaction is complete, the mixture is subjected to liquid-liquid extraction to isolate the crude intermediate. The organic layer is separated and washed sequentially with dilute acid, water, and dilute base to remove unreacted starting materials and byproducts. The solution is then dried over anhydrous sodium sulfate and concentrated under reduced pressure using a rotary evaporator. The resulting crude solid is purified by simple recrystallization from ethanol. This crystallization step is highly effective and eliminates the need for column chromatography, producing the pure amide intermediate as a crystalline solid with good recovery yield.

Cyclization Reaction to Form Paraxanthine
The purified intermediate is subjected to intramolecular cyclization using an aqueous sodium hydroxide solution. The reaction mixture is stirred at room temperature or with gentle heating (40-50°C) for several hours. The alkaline environment deprotonates the amide nitrogen, converting it into a strong nucleophile that attacks the ester carbonyl group within the same molecule. This nucleophilic addition-elimination mechanism closes the second ring of the purine system, forming the characteristic xanthine skeleton. The progress of the cyclization is monitored by HPLC to confirm complete consumption of the intermediate and maximize the yield of paraxanthine.

Isolation and Neutralization of Crude Product
Once the cyclization reaction reaches completion, the reaction mixture is cooled to room temperature if heating was applied. The solution is then carefully neutralized by adding dilute hydrochloric acid dropwise while stirring. As the pH approaches neutral (around 6-7), paraxanthine precipitates from the solution as a white to off-white solid due to its poor water solubility. The crude product is collected by vacuum filtration through a Büchner funnel and washed thoroughly with deionized water to remove inorganic salts, residual base, and other water-soluble impurities. The damp solid is then partially dried by air suction on the filter.

Recrystallization and Final Drying
The crude paraxanthine is purified to pharmaceutical grade by recrystallization. The solid is dissolved in a minimum volume of hot ethanol or ethanol-water mixture (typically 70:30 v/v), and the hot solution is filtered to remove any insoluble particulates. Upon slow cooling to room temperature, pure paraxanthine crystallizes out as well-formed crystals while impurities remain in the mother liquor. The crystals are collected by filtration and dried in a vacuum oven at 60-70°C until constant weight. This two-step synthesis achieves an overall yield of approximately 80% with product purity exceeding 98%, making the process suitable for kilogram-scale industrial production.

Paraxanthine and astaxanthin are two bioactive components with vastly different chemical categories, mechanisms of action, and applications. 1,7-DMX belongs to the methylxanthine alkaloid class and is the main metabolite of caffeine in the human body. Its core mechanism is as a central nervous system stimulant, with rapid onset and fewer side effects than caffeine. Astaxanthin, on the other hand, is a carotenoid, mainly derived from Haematococcus pluvialis. It is a potent fat-soluble antioxidant that can embed itself in cell membranes to neutralize free radicals and inhibit inflammatory pathways.

Based on these differences, their applications contrast sharply: Paraxanthine is primarily used in situations requiring immediate cognitive and performance enhancement, such as cognitive supplements, pre-workout formulations, and weight management products, aiming to provide a steady energy boost while avoiding nervousness; astaxanthin, however, focuses on long-term health maintenance and is widely used in oral beauty, anti-aging, eye, and joint health products, protecting the skin, retina, and cardiovascular system by continuously clearing oxidative damage. In short, paraxanthine aims to boost performance immediately, while astaxanthin focuses on long-term defense and protection.

paraxanthine for adhd

Paraxanthine, a major active metabolite of caffeine, has shown significant potential in improving cognitive function associated with ADHD in adults. Compared to traditional caffeine, paraxanthine effectively avoids the anxiety, nervousness, and sleep disturbances commonly associated with caffeine. Paraxanthine Powder provides a more stable and consistent cognitive enhancement than caffeine, potentially improving attention performance by reducing mind wandering and enhancing the function of the brain's default mode network. It also enhances memory and brain-derived neurotrophic factor (BDNF) levels more effectively than caffeine, providing theoretical support for further exploration of its application in ADHD treatment.

paraxanthine for blood pressure

The effects of paraxanthine on blood pressure are complex, with existing studies suggesting it may exert different regulatory effects on systolic and diastolic blood pressure. This bidirectional regulatory effect may be related to paraxanthine's sympathetic activation as an adenosine receptor antagonist. Overall, the effects of paraxanthine powder on blood pressure exhibit dose-dependent and multidimensional characteristics, potentially having a protective effect on systolic blood pressure, but its effect on diastolic blood pressure requires further investigation.

paraxanthine for weight loss

1,7-DMX is remarkably effective in promoting weight management. As the main active metabolite of caffeine, paraxanthine can effectively increase the resting metabolic rate, allowing the body to burn more calories at rest. Simultaneously, it promotes the breakdown of triglycerides in adipose tissue into free fatty acids and enhances the oxidation and utilization of these fatty acids during exercise or daily activities, thereby shifting the body towards fat as a preferred energy source. Furthermore, paraxanthine also has a hunger-suppressing effect, helping to reduce total calorie intake, which is particularly important for long-term weight control.

Paraxanthine for aDHD

Paraxanthine for blood pressure

Paraxanthine for weight loss

paraxanthine supplement

The uses of paraxanthine in the health supplement industry is receiving increasing attention, primarily focusing on cognitive enhancement and weight management. In cognitive health, studies have confirmed its ability to improve attention, memory, and reaction speed. Clinical trials are currently exploring the effects of combining L-theanine and paraxanthine on improving cognitive deficits in adults with ADHD. In weight management, paraxanthine assists in weight loss by activating lipolysis, increasing energy expenditure, and suppressing appetite. Patent literature also clearly indicates its efficacy in inducing thermogenesis and promoting lipolysis. The main dosage forms include paraxanthine capsules, etc.

paraxanthine drinks

Paraxanthine drinks is becoming a major innovative direction in the functional beverage field. Currently, some energy drinks and coffee products have begun to use it as a substitute or supplement for caffeine. On the one hand, it has better water solubility and lower bitterness than caffeine, making the beverage taste more acceptable and offering greater formulation flexibility. On the other hand, its metabolic pathway provides consumers with a more consistent energizing experience. In terms of product type, paraxanthine has been applied to various categories, including ready-to-drink coffee, espresso, energy drinks with paraxanthine, sports drinks, and sparkling water.

In the US, a company has obtained GRAS (Generally Recognized As Safe) status for its branded paraxanthine ingredient, allowing its use in energy drinks, decaffeinated coffee beverages, powders, nutrition bars, and other food and beverage products at a maximum dose of 300 mg per serving. The FDA, as the official regulatory body in the US, has oversight of GRAS certification, which is based on extensive scientific research confirming its safety.In the EU, the European Food Safety Authority (EFSA) is evaluating paraxanthine as a novel food ingredient, recommending in its proposed opinion a daily dose of 200 mg in dietary supplements for the average adult.

Based on existing clinical studies and toxicological assessments, paraxanthine demonstrates good safety and tolerability at conventional doses, with its side effect profile generally superior to that of conventional caffeine. Compared to caffeine, paraxanthine carries a lower risk of cardiovascular, gastrointestinal, sleep disturbance, and anxiety-related side effects, primarily due to its shorter in vivo half-life and unique pharmacological properties-studies have shown that paraxanthine has a smaller effect on diastolic blood pressure than caffeine and may possess anti-anxiety activity.

Choosing our paraxanthine powder provides you with a complete solution combining superior quality, authoritative certifications, and flexible service. Our products undergo rigorous testing to ensure purity and freedom from contamination, giving athletes and quality-conscious consumers peace of mind. Furthermore, our powder offers advantages such as lower bitterness and better solubility, facilitating integration into various product systems. Notably, we offer multiple international certifications including Halal, Vegan, and Non-GMO, and provide flexible customization services to meet your needs, including packaging specifications, formulation combinations, and OEM support, helping your products stand out in a competitive market.Contact us at info@kintaibio.com.

Hot Tags: paraxanthine powder, China paraxanthine powder manufacturers, suppliers, factory