Dihydro
Dihydro
Dihydro (pronunciation: /daɪˈhaɪdroʊ/) is a prefix used in organic chemistry to denote the presence of two hydrogen atoms in a compound. The term is derived from the Greek words "di," meaning "two," and "hydro," meaning "water."
Etymology
The prefix "dihydro" is derived from the Greek words "di" (δι), meaning "two," and "hydro" (ὕδωρ), meaning "water." It is used in the nomenclature of organic chemistry to indicate the presence of two hydrogen atoms in a compound.
Usage in Chemistry
In organic chemistry, "dihydro" is used as a prefix in the systematic nomenclature of organic compounds to denote the presence of two hydrogen atoms. For example, in the compound Dihydrogen monoxide (H2O), the prefix "dihydro" indicates that there are two hydrogen atoms.
"Dihydro" is also used in the names of specific compounds, such as Dihydrotestosterone (DHT), a hormone that plays a key role in male development, and Dihydrocodeine, a semi-synthetic opioid analgesic prescribed for pain or severe dyspnea.
Related Terms
- Hydrogen: The chemical element of atomic number 1, a colorless, odorless, highly flammable gas.
- Organic Chemistry: The branch of chemistry dealing with the scientific study of the structure, properties, composition, reactions, and synthesis of organic compounds that contain carbon atoms.
- Chemical Compound: A substance formed from two or more elements chemically united in fixed proportions.
External links
- Medical encyclopedia article on Dihydro
- Wikipedia's article - Dihydro
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