Zum Hauptinhalt springen Zur Suche springen Zur Hauptnavigation springen
10 Mio. Produkte
Schneller Versand
Glückliche Kunden & Autoren
BESTSELLER-Produkte
Sicherer Onlineshop

Chemistry of Heterocyclic Compounds

Produktinformationen "Chemistry of Heterocyclic Compounds"

Scientific Study from the year 2018 in the subject Chemistry - Organic Chemistry, grade: A, , language: English, abstract: Heterocyclic chemistry is one of the largest branches of chemistry. Well over six million discrete heterocyclic compounds are known, reflecting their central and important role in Science and Technology. The usefulness of heterocycles is due to their combination of compact and robust molecular structures with a high degree of molecular diversity that results in properties, which can be finely adjusted to the needs of sophisticated applications. This is well illustrated by the functions of many naturally occurring heterocycles that are essential components of living cells, including DNA in which specific nitrogen heterocycles are directly responsible for encoding all genetic information. Morphine and quinine, two of the earliest compounds to be used in therapy and in use today, are both heterocyclic natural products. William Perkin's synthesis of the lucrative quinine molecule in 1856 led to the discovery of an important synthetic heterocycle, mauveine, and this laid the foundation of the synthetic dye industry. This in turn gave birth to the modern industry when in 1932 the antibacterial properties of the dye lead to the discovery of heterocyclic sulfapyridines. These antibacterial agents were the first major life saving synthetic drugs and they quickly had a dramatic effect on the quality of life.
Eigenschaften "Chemistry of Heterocyclic Compounds"
Format: Taschenbuch / Softcover
Thema/BIC: Chemie
Verlag: GRIN Verlag

0 von 0 Bewertungen

Durchschnittliche Bewertung von 0 von 5 Sternen

Bewerten Sie dieses Produkt!

Teilen Sie Ihre Erfahrungen mit anderen Kunden.


EU Gewährleistungssiegel

Die EU führt ein verpflichtendes, einheitliches EU-Label zur Information über die gesetzliche Gewährleistung ein, ergänzt durch ein Garantielabel, sofern eine freiwillige Herstellergarantie besteht.

Ziel der neuen Regelung ist es, Verbraucherrechte transparenter darzustellen und europaweit einheitliche Informationsstandards zu schaffen. Verbraucher sollen auf einen Blick erkennen können, welche gesetzlichen Mindeststandards gelten, unabhängig davon, in welchem Land oder bei welchem Händler sie einkaufen.

EU Warranty Label

The European Union is introducing a mandatory, standardized EU label to provide information about consumers’ statutory warranty rights. This will be complemented by a guarantee label where a voluntary manufacturer’s guarantee is offered.

The purpose of this new regulation is to make consumer rights more transparent and to establish consistent information standards across the European Union. Consumers should be able to see at a glance which statutory minimum protections apply, regardless of the country or retailer from which they make a purchase.