SHEET /m/water · PubChem CID 962 · CAS 7732-18-5 · REV 2026.07
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Water from source
H2O · 18.015 g/mol
Distilled water · Dihydrogen oxide · Purified water · Sterile water
chemical compound whose molecules are formed by two hydrogen atoms and one oxygen atom
CategoryEveryday chemistry
Fig. 1 · 2D structure RDKit
O
Where you'll find it
Not yet mapped to everyday foods or products.
The dose makes the poison inferred
A reported mouse other LD50 for Water is 25,000 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
1750.0 g
a median lethal dose scaled to 154 lb (1,750,000 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.
Toxicity & hazards
Toxicity · LD50
25,000 mg/kg · very low toxicity · LD50 mouse other from source
The dose lens above scales this to a body weight.
2 more reported values
- 25,000 mg/kgLD50 · iv · mouse
- 190,000 mg/kgLD50 · other · mouse
WarningIrritantH315, H319, H335from source