SHEET /m/krypton · PubChem CID 5416 · CAS 7439-90-9 · REV 2026.07
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Krypton
from sourceKr · 83.8 g/mol
Element-Kr
What is Krypton?
A noble gas used in high-performance lighting and once, before caesium, the standard that defined the metre. Element 36. from source
CategoryElement & material
LeaderboardsBiggest
Fig. 1 · 2D structure RDKit
SMILES
[Kr]Where you'll find it
A pure element or an engineered material, rather than an ingredient in a product. See the rest of the element & material group.
Toxicity & hazards
WarningCompressed gasH280, H281from source