Caffeine

from source

C8H10N4O2 · 194.19 g/mol

guaranine · methyltheobromine · theine · teína

What is Caffeine?

The molecule behind coffee's lift: it keeps you feeling alert by getting in the way of your brain's own sleepiness signal. Found in coffee, tea, chocolate, cocoa, and soft drinks. from source

CategoryFood & flavor

TypeMethylxanthine

LeaderboardsBiggest Deadliest

Fig. 1 · 2D structure RDKit

SMILESCN1C=NC2=C1C(=O)N(C(=O)N2C)C

Where you'll find it

Coffee~95 mg per 8 oz cupwhat else is in it →Tea~47 mg per 8 oz cupwhat else is in it →Chocolatewhat else is in it →Cocoawhat else is in it →Soft drinkswhat else is in it →

Curated by MoleculeFinder from source

Still in the system computed

For a typical adult, Caffeine clears on a half-life of about 5 h: every 5 hours, half of what is left is gone. Try an amount:

cups (95 mg)1hours later0 h

95 mg left

100% of the 95 mg remains

An illustration of half-life, not a prediction of anyone's level.

The dose makes the poison inferred

A reported rat oral LD50 for Caffeine is 192 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:

your weight154 lb

13.4 g ≈ 141 cups

a median lethal dose scaled to 154 lb (13,440 mg)

“The dose makes the poison” is a cross-species estimate shown as neutral science, not a threshold anyone should act on. Real toxicity depends on the person, not body mass alone.