thiol

Sulfur alcohol analog

A thiol is an organic compound containing a sulfur-hydrogen group, the sulfur equivalent of an alcohol.

Thiols are responsible for many pungent odors—the smell of garlic, skunk spray, and natural gas (where they're added as a safety warning).

In biochemistry, the thiol group in the amino acid cysteine forms bridges that shape protein structure.

odor

skunk

Spray-armed striped mammal

garlic · onion · leek · natural gas · stench · putrid · malodorous · volatile · reek · fetid

chemistry

nucleophile

Electron-pair donating species

reactivity

biochemistry

cysteine

Thiol-containing amino acid

protein folding · active site · ligand · substrate · biomolecule · peptide · metabolism · catalysis · binding site · cofactor

antioxidant

N-acetylcysteine

Cysteine-derived mucolytic compound

peroxidase · scavenger · reducing agent · neutralization

industrial

hair removal

Eliminating unwanted body fuzz

stabilizer · preservative · mining · leaching · odorization · cosmetics · pesticide

Opposites
functional group chemistry

thiolalcohol

Intoxicating hydroxyl compound

ether · amine · sulfide · phenol · oxide

oxidation state

thioldisulfide

Two-sulfur chemical linkage

sulfoxide · sulfone

Phrases
Family

glutathione, thiosulfate

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G