Abbreviated designations

ABBREVIATED DESIGNATIONS OF SUBSTITUTED AMINO ACIDS AND PEPTIDES... 

FIGURE 1.20 Abbreviated designations of substituted amino acids and peptides. Examples of incorrect representations are given. 

FIGURE 3.2 The alcohols from which protectors are derived, and their abbreviated designations. 

ALCOHOLS FROM WHICH PROTECTORS DERIVE AND THEIR ABBREVIATED DESIGNATIONS... 

Most of the dithiolene ligands considered in this chapter are depicted in Schemes 5-6 with their abbreviated designation. 

Region BOC Negative pressure difference, countercurrent-cogravity operation (abbreviated designation - Ap counter-down)... 

Figure 7.4. Amino Acid Sequences of Human Hemoglobin (a chain) and Human Myoglobin. Hemoglobin a is composed of 141 amino acids myoglobin consists of 153 amino acids. (One-letter abbreviations designating amino acids are used see Table 3,2.)...

If products have not yet received marketing authorisation from Swissmedic, no advertisements for these medicinal products are allowed. The same applies for new indications, possible applications, dosages, and pharmaceutical forms and packaging of a medicinal product. The brand name may be used however, it must always be accompanied by the official abbreviated designation of its active ingredients. 

Figure 6. An overview of metabolic relationships. The arrows indicate dominant directions of carbon flow in, for example, a growing algal nnicell. Most of the pathways indicated are, however, found in nearly all living organisms and are reversible to some degree. The three-letter abbreviations designate amino acids and are decoded in Table 1. As indicated, isoprenoid hpids can be made from either C2 (acetyl-CoA) or C3 precursors (see discussions of Table 4 and Fig.

Abbreviated designation Structure Systematic name Common name Melting point (°C) Odour threshold value (mg kg" )... 

These names for the prostaglandins are abbreviated designations used by workers in the field systematic names are seldom used for prostaglandins. 

The fatty acids are named by replacing the final -e of the name of the parent hydrocarbon by the suffix -oic. Thus, a saturated 18-carbon acid would be named octade-canoic after the parent octadecane. An 18-carbon acid with one double bond would be octadecenoic after octadecene. The position of the double bond is indicated by reference to the carboxyl carbon atom (carbon atom 1). Thus, 9-octadecenoic acid would have 18 carbon atoms and a double bond between carbon atoms 9 and 10. Similarily, 9,12,15-octadecatrienoic acid would have 18 carbon atoms and double bonds between carbon atoms 9 and 10,12 and 13, and 15 and 16.The names may be abbreviated by stating the number of carbon atoms followed by a colon, followed by the number of double bonds (A), the positions of which are stated as a superscript. Thus, octadeca-trienoic acid would be designated 18 3 . Alternatively it may be written 9,12, 15-18 3. Carbon atoms 2 and 3 are designated alpha (a) and beta (P), respectively, and the methyl carbon at the distal end of the chain as the omega (w) carbon atom. In nutritional work, the unsaturated acids are frequently named in relation to the terminal methyl as carbon atom 1. Under this system 9,12,15-octadecatrienoic acid would become (i)-3,6,9-octadecatrienoic acid, since carbon atoms 3, 6 and 9 correspond to carbon atoms 16,13 and 10 imder the former system.The abbreviated designation would be (0-3,6,9-18 3. It has become common practice to use n instead of double bonds is inchcated by the use of the prefixes cis and tram. Wms, a-linolenic acid would be all cis-9,12,15-octadecatrienoic, or more simply aU cis 9,12,15-18 3. 

The following are the commonly encountered abbreviations designating the standards and tests operated by the leading world institutions ... 

DIN- MaL No. Abbreviated designation Flange Flange + PTFE seal Circular weld seam Insert connection + seam Lon udinal seam Circular weld seam + heating... 

DIN-Mat. No. Abbreviated designation As delivered MAW seam MAW + crevice block WIC seam WIC + crevice block Crevice corrosion array ... 

Allan/ Abbreviated designation DIN-Mat. No. Corrosion/erosion rate mm/a (mpy)... 

Name Abbreviated designation DIN-Mat. Corrosion depth ajler 1.6 a, mm... 

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