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Hydrafinil Nootropic Supplement

Product Name: Hydrafinil
Alias: 9-Hydroxyfluorene,9-Fluorenol,Hydroxyfluoren,9-Hydroxy-fluoren
CAS: 1689-64-1
EINECS: 216-879-0
MF: C13H10O
MW: 182.2179
Purity: 99%
MP: 153-154℃
BP: 367.5°C at 760 mmHg
FP: 131.3°C
Density: 1.253g/cm3
Grade: Pharmaceutical Grade
Appearance: Milky White Powder



Hydrafinil (or 9-Fluorenol) is a wakefulness-promoting agent, countering sleepiness and inattention. It's an analogue and pro-drug of modafinil (also known as Provigil) - a compound used by Airforce pilots on long missions to stay awake and alert.

Hydrafinil (aka 9-Fluorenol) is a novel eugeroic nootropic that is very similar in action to Modafinil. It was originally developed as a research compound to promote wakefulness and alertness. Due to its reported efficacy as a eugeroic agent, it is becoming popular among advanced nootropics users. Interestingly, users report less stimulating effects than Modafinil, but a greater ability to promote vigilance. Other reported benefits include attentional enhancement, increased motivation, subtle mood boost, improved cognitive function and ability to learn.


Increased alertness and wakefulness

Reduced fatigue and tiredness

Better concentration 

Enhanced mental energy

Higher productivity

Mechanisms of Action

The precise mechanism of action is still unknown. However, a few possible mechanisms have been proposed. Firstly, it is believed that Hydrafinil (Fluorenol) may function as a weak dopamine reuptake inhibitor, which means that it increases the levels of dopamine neurotransmitter. As a result, a number of cognitive processes are improved.

Secondly, it has been hypothesised that Hydrafinil (Fluorenol) acts as a serotonin 5-HT6 receptor antagonist. 5-HT6 receptors are located in the central nervous system (CNS) and it appears that their blockage can lead to improvements of cognitive performance in many different learning and memory paradigms.2 In addition, serotonin and its system plays a very important role in both cognitive and behavioural control. Therefore, some of the mild mood improvements reported following the use of Hydrafinil (Fluorenol) are attributed to this system.


Hydrafinil is an extremely potent analogue of Modafinil and research chemical stimulant nootropic that should be taken in dosages varying from no more than 50 to 100 mg once per day. Hydrafinil is something of a different molecule than that of Provigil, Modafinil, Adrafinil or Armodafinil, and is unlike those drugs in that it only lasts for about four hours on a single dosage, not twelve to fifteen like those listed in the former. That being said it also has some pretty impressive effects that those other drugs do not including more energy, a stronger effect on the mind and body, and has significantly more euphoria when compared to other analogue drugs.

Side Effects

Side effects of Hydrafinil are comparable. These include headache,and dehydration. Complaints of loss of appetite have also been reported.

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