chemistry

Panicudine

Panicudine 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 Panicudine rather than just read about it. In short: Panicudine (6-hydroxy-11-deoxy-13-dehydrohetisane) is a C20-diterpene alkaloid of the hetisine type, first isolated from monkshood. It has empirical formula C20H25NO3 and a melting point of 249–250 °C.

Key takeaways

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

Reference excerpt

Panicudine (6-hydroxy-11-deoxy-13-dehydrohetisane) is a C20-diterpene alkaloid of the hetisine type, first isolated from monkshood. It has empirical formula C20H25NO3 and a melting point of 249–250 °C. The structure was determined to be a hetisine type diterpene by noting infrared spectrum absorption bands of 3405 cm−1 (OH), 1718 (C=O), and 1650 (C=C), a proton magnetic resonance spectrum with "secondary hydroxy (4.02 ppm, m, 1H, W1/2 = 10 Hz), exomethylene (4.87 and 4.76 ppm, br.s, 1H each), and tertiary methyl (1.29 ppm, s, 3H) groups and the absence of N-methyl, N-ethyl, and methoxy groups." Additional ultraviolet spectrum and carbon-13 NMR data, confirmed by high resolution mass spectrometry, completed the determination of the structure. Panicudine was identified as an active antimicrobial substance in the chloroform extract of Polygonum aviculare, a traditional herbal medicine of the Mediterranean coastal region. It has also been isolated from the herb Rumex pictus.

Related compounds Panicutine is the acetate ester of panicudine.

A variety of related alkaloids have been isolated from other natural sources.

References

Illustrations

Worked examples

Example 1 — a first encounter with Panicudine

Start with the simplest possible case. Write down what Panicudine 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 Panicudine 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 Panicudine 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 Panicudine

In research: Panicudine 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 Panicudine 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: Panicudine is common in secondary-school and first-year university syllabi. It links to neighbouring topics Acetate esters, Amines, Diols, so understanding it makes those chapters shorter.
In everyday life: Look for Panicudine 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 Panicudine in 20 minutes

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

Frequently asked questions

What is Panicudine in simple terms?

Why does Panicudine 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 Panicudine?

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 Panicudine.