👉 Hydrargyrum is a term used in the field of chemistry, specifically in the context of organic compounds. It refers to a compound that contains two hydrogen atoms and has an aldehyde group attached to it. This compound can be denoted by the formula H2C=OCH2CHOH or CH3COCH(OH). Hydrargyrum is often used as a structural modifier in organic synthesis, particularly in the construction of organic compounds with a strong aldehyde group.