SKU: N/A Category:


4-EFMC is a designer drug that is structurally similar to methcathinone, a psychoactive drug. The chemical formula for 4-EFMC is C12H17NO, and it has a molar mass of 191.27 g/mol. This research chemical is part of the substituted cathinone class of compounds, which are known for their stimulant properties.

Chemical Properties

The chemical name for 4-EFMC is 1-(4-Ethylphenyl)-2-(methylamino)propan-1-one. It is a crystalline solid that is soluble in organic solvents such as ethanol and chloroform. 4-EFMC has a melting point of 110-112 °C and a boiling point of 281.1 °C at 760 mmHg.


As a substituted cathinone, 4-EFMC is believed to act as a releasing agent for dopamine, norepinephrine, and serotonin. This means that it increases the levels of these neurotransmitters in the brain, leading to stimulating effects such as increased alertness, euphoria, and energy.

Mechanism of Action

4-EFMC is thought to work by binding to and inhibiting the reuptake transporters responsible for the removal of dopamine, norepinephrine, and serotonin from the synaptic cleft. This results in an accumulation of these neurotransmitters in the brain, leading to their increased activity and subsequent stimulation.

Toxicity and Safety

The use of 4-EFMC is associated with potential health risks and adverse effects. Since it is a relatively new compound, there is limited information available on its long-term effects and safety profile. However, similarly substituted cathinone have been associated with serious side effects such as cardiovascular complications, renal failure, and even death.

Side Effects

The use of 4-EFMC has been reported to cause several side effects, including nausea, vomiting, anxiety, paranoia, and agitation. It can also increase heart rate and blood pressure, leading to cardiovascular complications.


Overdose of 4-EFMC can lead to serious health complications, including seizures, hallucinations, and respiratory failure. If you or someone you know is experiencing an overdose, seek immediate medical attention.

Legal Status

4-EFMC is a controlled substance in many countries, including the United States and several European nations. Its production, sale, and possession are illegal in these countries, and penalties for its use can be severe. It is important to research the legal status of this substance in your jurisdiction before considering its use.


In conclusion, 4-EFMC is a novel substituted cathinone that has been reported to have stimulant properties. However, its use is associated with potential health risks and adverse effects. It is important to use caution when considering the use of this or any other research chemical, and to consult with a medical professional before doing so.


1000g, 100g, 2000g, 200g, 300g, 500g


There are no reviews yet.

Be the first to review “4-EFMC”

Your email address will not be published. Required fields are marked *

Shopping Cart
$400.00$540.00Select options
× WhatsApp!