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What is 4F-ADB?

4F-ADB, is also called 4-Fluoro ADB, 4-fluoro MDMB-PINACA and (S)-N-(1-amino-3-(3,4-difluorophenyl)propan-2-yl)-5-chloro-4-(4-chloro-1-methyl-1H-pyrazol-5-yl)furan-2-carboxamide. It is a potent synthetic cannabinoid of the Indazole family, and a close analogue of the better known 5F-ADB.

Little is known for certain about the properties of this chemical, as few formal studies have been published. It is believed t be a powerful agonist of the CB1 receptor in humans and animals, but it is unknown just how selective it is relative to its CB2 effects.

Similar chemicals include:

  • 4FADB
  • 5F-ADB


Legality of 4F-ADB

4F-ADB-FUBINACA is not yet known to be regulated, banned or controlled by any major jurisdiction. It is fairly new to the market, and has not yet received a great deal of attention. However, it may be included in the wide-scale bans of analogues to controlled chemicals, based on its similarity to 5F-ADB and other Indazole type synthetic cannabinoids.

It is the sole responsibility of the buyer to familiarise themselves with the laws and regulations of their country, and to ensure their order is in full compliance with them. DoctorChemistry does not undertake to research the laws of any country.


Possible side effects of 4F-ADB

There are few if any formal studies available on this material. However, it is known to be used in certain ‘synthetic cannabis’ blends around the world, and some anecdotal reports are available. It is said to produce an intense euphoric effect and to elevate the mood for many hours. Others have reported drowsiness or the ability to engage in deep, restful sleep.


4F-ADB-FUBINACA is not suitable for human consumption. It is a research chemical and is sold only for identification and in-vitro use. It should be handled only by trained professionals using proper safety equipment. Take care to store this product safely.




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