The Fischer projection is a systematic way of drawing the skeletal formula of an acyclic monosaccharide so that the handedness of each chiral carbon is well specified.

In skeletal formula the double bond is drawn as two parallel lines (=) between the two connected atoms ; typographically, the equals sign is used for this.

Image: Mauveine_a_skeletal_org. svg |< center > skeletal formula of mauveine A </ center >

Image: Mauveine_b_skeletal_org. svg |< center > skeletal formula of mauveine B </ center >

Image: Mauveine_b2_skeletal_org. svg |< center > skeletal formula of mauveine B2 </ center >

Image: Mauveine_c_skeletal_org. svg |< center > skeletal formula of mauveine C </ center >

Another shorthand structural diagram is the skeletal formula ( also known as a bond-line formula or carbon skeleton diagram ).

In skeletal formula the triple bond is drawn as three parallel lines (≡) between the two connected atoms ; in typography, this is accomplished with the identity operator.

The skeletal formula of the antidepressant drug escitalopram, featuring skeletal representations of heteroatom s, a covalent bond # Bond order | triple bond, benzene | benzene rings and stereochemistry

The skeletal formula of an organic compound is a shorthand representation of its molecular structure.

A skeletal formula shows the skeletal structure or skeleton of a molecule, which is composed of the skeletal atoms that make up the molecule.

For example, in the image below, the skeletal formula of hexane is shown.

The skeletal formula of hexane, with carbons number one and three labelled

Shown below for comparison are a ball-and-stick model of the actual three-dimensional structure of the ethanol molecule in the gas phase ( determined by microwave spectroscopy, left ), the Lewis structure ( centre ) and the skeletal formula ( right ).

Single bonds are most common and are represented by a single, solid line between two atoms in a skeletal formula.

Image: Stereochemistry-example-2D-skeletal. png |< center > The stereochemical skeletal formula of 2-chloro-2-fluoropentane </ center >

Image: Amphetamine-2D-skeletal. png |< center > The skeletal formula of amphetamine, a mixture of both R and S stereoisomers </ center >

< center > Oleic acid's skeletal formula

* Skeletal formula, in chemistry, the skeletal structure or skeleton of a molecule

The skeletal formula of acetamidine ( acetimidamide )

In a more general sense, hydantoins can refer to chemical compounds that have substituent groups bonded to a hydantoin ring skeletal structure.

The two most advanced 19th century classifications both used complex skeletal characters ; Milne Edwards and Haime ’ s 1857 classification was based on macroscopic skeletal characters, while Ogilvie ’ s 1897 scheme was developed using observations of skeletal microstructures, with particular attention to the structure and pattern of the septal trabeculae.

The skeletal structure of an organic compound is the series of atoms bonded together that form the essential structure of the compound.

Thomas Henry Huxley | Huxley used illustrations to show that humans and apes had the same basic skeletal structure.

< imagemap > File: 1st millennium montage. png | From left, clockwise: Depiction of Jesus, the central figure in Christianity ; The Colosseum, a landmark of the once mighty Roman Empire ; Gunpowder is invented during the latter part of the millennium, in China ; Chess, a new board game, takes on popularity across the globe ; The Roman Empire falls, and then reappears ushering in the Early Middle Ages ; The skeletal remains of a young woman, known as the " ring lady ", killed by the eruption of Mount Vesuvius in AD 79 ; Attila the Hun, leader of the Hunnic Empire, which takes most of western Europe.

File: Aldimine -( primary )- skeletal. png | Primary aldimine

File: Aldimine -( secondary )- skeletal. png | Secondary aldimine

File: Imine -( primary )- skeletal. png | Primary ketimine

File: Imine -( secondary )- skeletal. png | Secondary ketimine

File: Diethyl-butylmalonate skeletal. svg | Diethyl n-butylmalonate

Image: Cyclopropene 2D skeletal. svg | Cyclopropene

Image: Snake Skeletons. jpg | Display on the skeletal structure of snakes and other reptiles ( 2007 )

The mesoderm aids in the production of cardiac muscle, skeletal muscle, smooth muscle, tissues within the kidney s, and red blood cell s. The ectoderm produces tissues within the Epidermis ( skin ) | epidermis and aids in the formation of neuron s within the brain, and melanocytes.

Image: manual_palpation_palpator. jpg | Manual palpation of skeletal landmarks combined with 3D digitizing ( see text below for explanations ).

Image: virtual_palpation. jpg | Virtual palpation of skeletal landmarks.

calcite | Calcitic skeletal parts of Belemnitida | belemnites ( Jurassic of Wyoming

The mesoderm aids in the production of cardiac muscle, skeletal muscle, smooth muscle, tissues within the kidney s, and red blood cell s. The ectoderm produces tissues within the Epidermis ( skin ) | epidermis and aids in the formation of neuron s within the brain, and melanocytes.

They have the formula RS where R is an organic substituent such as alkyl or aryl.

An allyl group is a substituent with the structural formula H < sub > 2 </ sub > C = CH-CH < sub > 2 </ sub > R, where R is the connection to the rest of the molecule.

* For many common compounds the substituent is linked at one end ( the 1 position ), which is therefore not explicitly numbered in the formula. The substituent name is modified by stripping ane ( see Alkane ) and adding the appropriate suffix. This is " recommended only for saturated acyclic and monocyclic hydrocarbon substituent groups and for the mononuclear parent

Silicone resins are a type of silicone material which is formed by branched, cage-like oligosiloxanes with the general formula of R < sub > n </ sub > SiX < sub > m </ sub > O < sub > y </ sub >, where R is a non reactive substituent, usually Me or Ph, and X is a functional group H, OH, Cl or OR.

Poly ( hydridocarbyne ) ( PHC ) is one of a class of carbon-based random network polymers primarily composed of tetrahedrally hybridized carbon atoms, each having one hydride substituent, exhibiting the generic formula n. PHC is made from bromoform, a liquid halocarbon that is commercially manufactured from methane.