This is an amino acid (chemical formula (R)-2-amino-3-(4-hydroxy-2-methylbutan-2-ylthio)propanoic acid.) This pheromone has been known of for several years but not all of its properties have been ...

Save guides, add subjects and pick up where you left off with your BBC account. The relative atomic masses of elements are proportional measures. For example, the Ar for helium is 4.0, and the A r ...

We have received text from H.R. 629: Ending Chemical Abortions Act of 2025. This bill was received on 2025-01-22, and currently has 20 cosponsors. Skip to ... To add symbols: ...