In IUPAC nomenclature, however, hexane is the unbranched isomer (n-hexane); the other four isomers are named as methylated derivatives of pentane and butane. IUPAC also uses the term as the root of many compounds with a linear six-carbon backbone, such as 2-methylhexane (C7H16), which is also called isoheptane.
Dentin is the substance between enamel or cementum and the pulp chamber. It is secreted by the odontoblasts of the dental pulp. The formation of dentin is known as dentinogenesis. The porous, yellow-hued material is made up of 70% inorganic materials, 20% organic materials, and 10% water by weight.
Phosphorous and calcium are two inorganic nutrients that are responsible for bone growth in humans. Nitrogen helps give amino acids, the basic building blocks of proteins, their structure and shape. Iron helps maximize blood production to carry oxygen from the lungs to the rest of the body. Fluorine is essential for optimizing proper tooth formation. In addition to these common inorganic nutrients, there are also many trace minerals found in all human food that are considered to be inorganic nutrients.