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DOB – 4-chloro-2,5-dimethoxyamphetamine

4-chloro-2,5-dimethoxyamphetamine

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DOB is the common abbreviation for 4-bromo-2,5-dimethoxyamphetamine, a synthetic psychedelic in the amphetamine family.

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DOB, or 4-bromo-2,5-dimethoxyamphetamine, is a synthetic psychedelic substance belonging to the phenethylamine and substituted amphetamine families. Renowned for its remarkable potency and extended duration, DOB has been a subject of interest in both scientific research and underground psychedelic communities since its synthesis in the 196s.

Chemical Characteristics and Pharmacology

DOB’s chemical structure is defined by a bromine atom at the 4-position and methoxy groups at the 2 and 5 positions on the phenyl ring. Its molecular formula is C11H16BrNO2. This configuration enables DOB to act primarily as a potent agonist at the 5-HT2A serotonin receptor, which is central to its psychedelic effects. The compound’s action at this receptor is responsible for the profound alterations in perception, cognition, and mood that characterize the DOB experience.

Effects and Experience

The effects of DOB are notable for their intensity and longevity. After ingestion, the onset can take up to three hours, with the experience often lasting between 18 and 30 hours. Users typically report vivid visual phenomena, such as geometric patterns, color enhancement, and shifting shapes. In addition to perceptual changes, DOB can induce heightened alertness, increased energy, and a sense of mental clarity. However, the stimulating nature of the compound can also lead to restlessness, insomnia, and, in some cases, anxiety or paranoia.

Research and Analytical Applications

DOB is primarily utilized in laboratory and research settings, where it serves as a tool for studying serotonin receptor activity and the mechanisms underlying psychedelic experiences. Its long duration and pronounced effects make it valuable for extended observation and analysis. Due to its potency, handling DOB requires meticulous attention to dosing and safety protocols, including the use of calibrated equipment and personal protective gear.

Safety Considerations

Given its strength and duration, DOB must be approached with caution. Overdosing, even by a small margin, can result in severe physiological and psychological reactions, including hypertension, tachycardia, and acute anxiety. Laboratories working with DOB must implement strict safety measures, such as secure storage, controlled access, and comprehensive training for personnel. The compound is not intended for human or veterinary use outside of approved research contexts.

Regulatory Status

DOB is classified as a controlled substance in many countries, reflecting concerns about its potential for misuse and adverse effects. Its acquisition, possession, and distribution are tightly regulated, and only licensed entities are permitted to handle it for scientific or analytical purposes.

Commercial Availability

Specialized Chemical Vendors

DOB is supplied by select chemical vendors who cater exclusively to research institutions and laboratories. These suppliers provide high-purity material, detailed analytical data, and full documentation to ensure traceability and compliance.

Batch Testing and Documentation

Leading suppliers conduct rigorous batch testing to confirm purity and identity, providing certificates of analysis and safety data sheets with each order. This ensures that researchers receive reliable and consistent material for their studies.

Custom Research Solutions

Some vendors offer tailored solutions, such as custom synthesis or specific packaging requirements, to meet the unique needs of research projects. These services are provided under strict regulatory oversight and quality assurance protocols.


In essence, DOB – 4-bromo-2,5-dimethoxyamphetamine – stands out as a powerful and long-lasting psychedelic compound, valued for its research potential and unique pharmacological profile. Its use is strictly limited to controlled laboratory environments, with an emphasis on safety, compliance, and scientific integrity.

Product NameDOB – 4-chloro-2,5-dimethoxyamphetamine
Scientific Name4-chloro-2,5-dimethoxyamphetamine
SKU / CASRC-557253
Purity≥99.00%
Molecular FormulaC11H16ClNO2
Intended UseFor research and analytical purposes only. Not for human or veterinary use.
Safety Information

Handle with care. Use appropriate personal protective equipment (PPE). Avoid inhalation, ingestion, and skin contact. Store in a cool, dry place away from incompatible substances. For laboratory use only.

Price$0.00 per gram
AvailabilityOut of Stock

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What is the intended use of this product?

This product is sold strictly for research and laboratory purposes only. Not intended for human or veterinary consumption.

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Yes. A COA is available for every batch. Contact support@npsresearchchem.com to request documentation.

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