science

Methylenedioxyphenylpropylaminopentane

Methylenedioxyphenylpropylaminopentane is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Methylenedioxyphenylpropylaminopentane rather than just read about it. In short: 1-(3,4-Methylenedioxyphenyl)-2-propylaminopentane (MPAP), also known as 3,4-methylenedioxy-α,N-dipropylphenethylamine, N-propyl-1,3-benzodioxolylpentanamine (PDBP), or propyl-K, is a monoaminergic activity enhancer (MAE) of the phenethylamine, amphetamine, and α-propylphenethylamine families that is closely related to phenylpropylaminopentane (PPAP). It is an analogue of PPAP and benzofuranylpropylaminopentane (BPAP…

Key takeaways

Methylenedioxyphenylpropylaminopentane belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Methylenedioxyphenylpropylaminopentane to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Methylenedioxyphenylpropylaminopentane from memory before moving on to harder problems.

Reference excerpt

1-(3,4-Methylenedioxyphenyl)-2-propylaminopentane (MPAP), also known as 3,4-methylenedioxy-α,N-dipropylphenethylamine, N-propyl-1,3-benzodioxolylpentanamine (PDBP), or propyl-K, is a monoaminergic activity enhancer (MAE) of the phenethylamine, amphetamine, and α-propylphenethylamine families that is closely related to phenylpropylaminopentane (PPAP). It is an analogue of PPAP and benzofuranylpropylaminopentane (BPAP) with a benzodioxole ring instead of a phenyl or benzofuran ring, respectively. MAEs are agents that enhance the action potential-mediated release of monoamine neurotransmitters. MPAP is a MAE of serotonin, norepinephrine, and dopamine, all with similar potency. This is similar to BPAP, but is in contrast to PPAP and selegiline, which act exclusively as catecholaminergic activity enhancers (CAEs) and do not enhance serotonin. Like PPAP and BPAP, but in contrast to amphetamines, MPAP has no classical monoamine releasing agent actions. MPAP has comparable potency to PPAP and selegiline as a MAE in terms of enhancing the monoamine neurotransmitters in the isolated rat brain stem ex vivo. However, it was 5-fold more potent than PPAP and selegiline as a MAE in rodents in vivo in terms of the minimum dose that significantly antagonized the behavioral depression induced by tetrabenazine in the shuttle box. On the other hand, MPAP was 20-fold less potent than the highly potent BPAP in the shuttle box. As with BPAP and PPAP, the negative enantiomer (i.e., (–)-MPAP) is more biologically active as a MAE. The effects of MAEs seem to be mediated by intracellular TAAR1 agonism coupled with uptake by monoamine transporters into monoaminergic neurons. MPAP is closely structurally related to a number of other phenethylamine drugs. These include the entactogen-like drug 1,3-benzodioxolylpentanamine (BDP; K) and its derivatives 1,3-benzodioxolyl-N-methylpentanamine (MBDP; methyl-K) and 1,3-benzodioxolyl-N-ethylpentanamine (EBDP; ethyl-K); the entactogen-like drug 3,4-methylenedioxy-N-propylamphetamine (MDPR); and the cathinone stimulants pentylone (βk-MBDP), ephylone (βk-EBDP), and methylenedioxypyrovalerone (MDPV). MPAP was first described in the scientific literature in 2001, following BPAP in 1999. It was discovered by József Knoll and colleagues.

See also Substituted methylenedioxyphenethylamine Substituted α-propylphenethylamine Indolylpropylaminopentane (IPAP) Naphthylpropylaminopentane (NPAP)

References

Illustrations

Worked examples

Example 1 — a first encounter with Methylenedioxyphenylpropylaminopentane

Start with the simplest possible case. Write down what Methylenedioxyphenylpropylaminopentane claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Methylenedioxyphenylpropylaminopentane before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Methylenedioxyphenylpropylaminopentane ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Methylenedioxyphenylpropylaminopentane

In research: Methylenedioxyphenylpropylaminopentane appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Methylenedioxyphenylpropylaminopentane in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Methylenedioxyphenylpropylaminopentane is common in secondary-school and first-year university syllabi. It links to neighbouring topics Abandoned drugs, Alpha-Propylphenethylamines, Drugs with unknown mechanisms of action, so understanding it makes those chapters shorter.
In everyday life: Look for Methylenedioxyphenylpropylaminopentane outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Methylenedioxyphenylpropylaminopentane in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Methylenedioxyphenylpropylaminopentane means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Methylenedioxyphenylpropylaminopentane out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Methylenedioxyphenylpropylaminopentane in simple terms?

Why does Methylenedioxyphenylpropylaminopentane matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Methylenedioxyphenylpropylaminopentane?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Methylenedioxyphenylpropylaminopentane.