Caffeine from source

C8H10N4O2 · 194.19 g/mol

Guaranine · 1,3,7-Trimethylxanthine · Methyltheobromine · Theine

chemical compound used as a stimulant

CategoryFood & flavor

TypeStimulant Methylxanthine

LeaderboardsBiggest Deadliest

Fig. 1 · 2D structure RDKit

CN1C=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 →

Curated by MoleculeFinder from source

Still in your system computed

Caffeine clears on a half-life of 5 h. Every 5 hours, half of what's left is gone. Put in what you had:

cups (95 mg)1hours ago0 h

95 mg left

100% of your 95 mg remains

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.

Signature properties

Half-life5 hfrom source

Toxicity & hazards

Toxicity · LD50

192 mg/kg · moderately toxic · LD50 rat oral from source

The dose lens above scales this to a body weight.

4 more reported values

127 mg/kgLD50 · oral · mouse
105 mg/kgLD50 · iv · rat
260 mg/kgLD50 · other · rat
300 mg/kgLD50 · other · rat

DangerToxicIrritantHealth hazardH301, H302, H332, H360from source

Keep roaming

Where Caffeine leads

Found infrom source

Morning coffeeeveryday world Chocolateeveryday world

Affectsinferred

Adenosinereceptor antagonist Dopamineindirect signaling Cortisoltime-linked

Becomesfrom source

Paraxanthinemajor metabolite Theobromineminor metabolite Theophyllineminor metabolite

Caffeine is the world's most widely used psychoactive drug, and the only one routinely served to children (as chocolate) and at the breakfast table.