chemistry

Lophophorine

Lophophorine is a chemistry 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 Lophophorine rather than just read about it. In short: Lophophorine, also known as N-methylanhalonine, is a tetrahydroisoquinoline alkaloid made by various cacti in the Lophophora family. Arthur Heffter tried lophophorine at a dose of 20 mg and found that it produced vasodilation, an immediate headache, and a warm flushed feeling, effects which dissipated within an hour.

Key takeaways

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

Reference excerpt

Lophophorine, also known as N-methylanhalonine, is a tetrahydroisoquinoline alkaloid made by various cacti in the Lophophora family. Arthur Heffter tried lophophorine at a dose of 20 mg and found that it produced vasodilation, an immediate headache, and a warm flushed feeling, effects which dissipated within an hour. It has also been said to produce nausea in humans. Conversely, it did not produce hallucinogenic effects. Lophophorine is described as highly toxic and produces strychnine-like convulsions in animals. It was first described in the scientific literature by Heffter by 1898.

See also Substituted tetrahydroisoquinoline Peyophorine (N-ethylanhalonine) Anhalonine

References

External links Lophophorine - Isomer Design Lophophorine - Trout's Notes

Illustrations

Worked examples

Example 1 — a first encounter with Lophophorine

Start with the simplest possible case. Write down what Lophophorine claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, 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 Lophophorine 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 Lophophorine 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 Lophophorine

In research: Lophophorine appears in chemistry 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 Lophophorine 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: Lophophorine is common in secondary-school and first-year university syllabi. It links to neighbouring topics Convulsants, Drugs not assigned an ATC code, Heterocyclic compounds with 3 rings, so understanding it makes those chapters shorter.
In everyday life: Look for Lophophorine 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 Lophophorine in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Lophophorine 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 Lophophorine out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Lophophorine in simple terms?

Why does Lophophorine matter?

Because it connects several chemistry 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 Lophophorine?

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 Lophophorine.