BOB (psychedelic)


BOB (4-bromo-2,5,beta-trimethoxyphenethylamine) is a relatively obscure psychedelic substance characterized as the beta-methoxy counterpart of 2C-B. Alexander Shulgin initially synthesized this compound. According to his book PiHKAL, the recommended dosage range for BOB falls within 10–20 mg, with the effects lasting approximately 10–20 hours.
The experience induced by BOB typically encompasses an altered state of consciousness, accompanied by sensations such as tinnitus, a pleasant tingling sensation throughout the body, and an enhanced sense of awareness. However, it’s essential to note that there is limited available information regarding the pharmacological properties, metabolism, and potential toxicity associated with BOB. Further research is needed to understand this compound comprehensively.

CAS Number98537-42-9 
3D model (JSmol)Interactive image
CompTox Dashboard(EPA)DTXSID60569805


In the United Kingdom, this substance is classified as a Class A drug under the Misuse of Drugs Act.


  • What is BOB?
  • BOB, which stands for 4-bromo-2,5,beta-trimethoxyphenethylamine, is a lesser-known psychedelic substance. It is the beta-methoxy analog of 2C-B and is known for its mind-altering effects.
  • Who first synthesized BOB?
  • BOB was first synthesized by Alexander Shulgin, a renowned chemist and psychopharmacologist, and it is featured in his book “PiHKAL.”
  • What are the typical dosage and duration of BOB effects?
  • According to Shulgin’s PiHKAL, the dosage range for BOB is listed as 10–20 mg, with the effects lasting for approximately 10–20 hours.
  • What kind of effects does BOB produce?
  • BOB is reported to induce an altered state of consciousness, tinnitus (ringing in the ears), a pleasant tingling sensation throughout the body, and an increased sense of awareness.
  • Is BOB a widely studied substance?
  • No, there is very little data available about the pharmacological properties, metabolism, and toxicity of BOB. It remains a lesser-known and less-researched psychedelic compound.
  • Is BOB legal in the United Kingdom?
  • No, BOB is classified as a Class A drug in the United Kingdom under the Misuse of Drugs Act, making its possession, sale, or use illegal.
  • What precautions should one take when using BOB or other psychedelics?
  • When using substances like BOB or any psychedelic, it’s essential to be well-informed and take safety precautions. These substances can have unpredictable effects on individuals. It is advisable to have a trusted, sober person present, research the substance thoroughly, and start with a low dose to minimize potential risks.
  • Can BOB be used for therapeutic purposes?
  • There is no significant research on the therapeutic potential of BOB, and its legality in many regions may hinder such exploration. If you are interested in psychedelic therapy, you should explore legal and well-studied alternatives.
  • What are the potential risks associated with using BOB?
  • The lack of research on BOB means that its risks and side effects are not well-documented. As with any psychedelic substance, users should be cautious and aware of the potential for adverse effects on mental and physical health.
  • Is BOB related to other substances in the 2C family?
  • Yes, BOB is structurally related to other compounds in the 2C family of psychedelics, like 2C-B. These substances share similarities in their chemical structures and may produce similar effects, although each compound is unique in its own right.


  1. BOB Entry in PiHKAL BOB, short for 4-bromo-2,5,beta-trimethoxyphenethylamine, is a relatively obscure psychedelic compound featured in Alexander Shulgin’s influential book “PiHKAL.” Shulgin was known for his groundbreaking work in the field of psychopharmacology and contributed to the synthesis and understanding of various psychoactive substances.
  2. United Kingdom Misuse of Drugs Act 2001 Amendment In the United Kingdom, BOB is classified as a controlled substance under the Misuse of Drugs Act 2001. This legal framework regulates various substances and their usage, designating them into different classes based on their potential for harm and misuse. It’s crucial to be aware of the legal status of substances like BOB to avoid any legal ramifications associated with their possession, sale, or use. This information can help individuals make informed decisions and stay within the boundaries of the law.

Leave a Comment

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