science

Oxyphenisatine

Oxyphenisatine 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 Oxyphenisatine rather than just read about it. In short: Oxyphenisatine (or oxyphenisatin) is a laxative. It is closely related to bisacodyl, sodium picosulfate, and phenolphthalein.

Key takeaways

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

Reference excerpt

Oxyphenisatine (or oxyphenisatin) is a laxative. It is closely related to bisacodyl, sodium picosulfate, and phenolphthalein. Long-term use is associated with liver damage, and as a result, it was withdrawn in most countries in the early 1970s. The acetate derivative oxyphenisatine acetate was also once used as a laxative. Natural chemical compounds similar to oxyphenisatine may be present in prunes, but a recent review of the relevant scientific literature suggests that the laxative effect of prunes is due to other constituents including phenolic compounds (mainly neochlorogenic acids and chlorogenic acids) and sorbitol. Oxyphenisatin has cathartic properties.

Synthesis The ketone group of isatin (1) is nonenolizable and has interesting properties. In strong acid it becomes protonated, and the oxygen can be replaced by electron rich moieties.

In 1885, it was reported that condensation of isatin with phenol 2 leads to oxyphenisatin (3), which can then also be acetylated to (4).

Derivatives Phenisatin (Triacetyldiphenolisatin, Laxagetten, Unilax, Trisatin) Nicoxyphenisatin Cinnoxyphenisatin Cofisatine [54063-34-2]

References

Illustrations

Worked examples

Example 1 — a first encounter with Oxyphenisatine

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

In research: Oxyphenisatine 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 Oxyphenisatine 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: Oxyphenisatine is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2,2-Bis(4-hydroxyphenyl)propanes, Gastrointestinal system drug stubs, Hepatotoxins, so understanding it makes those chapters shorter.
In everyday life: Look for Oxyphenisatine 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Oxyphenisatine” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Oxyphenisatine in 20 minutes

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

Frequently asked questions

What is Oxyphenisatine in simple terms?

Oxyphenisatine (or oxyphenisatin) is a laxative. It is closely related to bisacodyl, sodium picosulfate, and phenolphthalein.

Why does Oxyphenisatine 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 Oxyphenisatine?

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 Oxyphenisatine.