isomer in English

noun
1
each of two or more compounds with the same formula but a different arrangement of atoms in the molecule and different properties.
However, several research groups have suggested cis isomers of lycopene are better absorbed than the all-trans form.
2
each of two or more atomic nuclei that have the same atomic number and the same mass number but different energy states.
The Texas collaboration purports to have demonstrated that a 10-keV x-ray photon can precipitate a prompt 2.45 - MeV gamma-ray cascade as the isomer Hf m2 relaxes to the stable nuclear ground state.

Use "isomer" in a sentence

Below are sample sentences containing the word "isomer" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "isomer", or refer to the context using the word "isomer" in the English Dictionary.

1. α-Asaron (cis-Isomer), β-Asaron (trans-Isomer) γ-Asaron

2. Azobenzene exists as two isomers: the isomer E (or trans) and the isomer Z (or cis) (Fig

3. Bromination of methoxybenzene (anisole) is very fast and gives mainly the para-bromo isomer, accompanied by 10% of the ortho-isomer and only a trace of the meta-isomer

4. Adamantane is the most stable isomer of C10H16

5. On the other hand, theβ-adrenolytic (−)-isomer of INPEA as well as the inactive (+)-isomer are without any local anesthetic effect at all.

6. Hyoscyamine is the 3 (S)-endo isomer of Atropine

7. Adamantane is the most stable isomer of C 10 H 16

8. By agar gel electrophoresis, the 11-Gla prothrombin isomer moved the fastest, followed by the 10-, and lastly the 9-Gla isomer, independent of Ca2+.

9. -Cinnamic acid results in Isomer I and which leads to IsomeraII

10. Keep your Apocholic acid (Delta 14 isomer) stores filled with Avanti's help

11. I need a single isomer anesthetic and a heart-lung bypass machine.

12. As regards the active substances fluopyram; hexachlorocyclohexane (HCH), alpha-isomer; hexachlorocyclohexane (HCH), beta-isomer; hexachlorocyclohexane (HCH), sum of isomers, except the gamma isomer; lindane (hexachlorocyclohexane (HCH), gamma-isomer); nicotine and profenofos in and on all products, Regulation (EC) No 396/2005 as it stood before being amended by this Regulation shall continue to apply to products which were produced before 4 January 2018.

13. An isomer of Cinnamic acid known as allo- Cinnamic acid is also known

14. Strains of Group IV split only the β-isomer of the acetylated naphthylamine.

15. Interestingly, many people confuse Androsterone with EpiAndrosterone, and although they are very similar, the difference is that Androsterone is a 3-alpha isomer, and Epi is a 3-beta isomer of the compound

16. Angelicin (plural Angelicins) (organic chemistry) a tricyclic heterocycle that is an isomer of psoralen; Translations

17. Acyclic aldehydes, without other oxygen function (excluding methanal (formaldehyde), ethanal (acetaldehyde), butanal (butyraldehyde; normal isomer))

18. A process is disclosed for producing isomer mixtures from O-phenoxyalkylhydroxyl amines Ia: H¿2?

19. Bromination of nitrobenzene requires strong heating and produces the meta-bromo isomer as the chief product.

20. Acyclic aldehydes, without other oxygen function (excl. methanal "formaldehyde", ethanal "acetaldehyde" and butanal "butyraldehyde, normal isomer")

21. The most likely alternative structure, the tetrahedron, would produce only one isomer for this composition.

22. The rate of absorption of the D-isomer is only 50% of that of the L-compound.

23. A single enzyme molecule can make many millions of single isomer product molecules per minute in a chemical reactor.

24. Malic acid has two stereoisomeric forms (L- and D-enantiomers), though only the L-isomer exists naturally.

25. In this way, all the substrates could be converted into a single product isomer with a 100% theoretical yield.

26. O-Cresol is an isomer of two other common forms, meta-Cresol (m-Cresol) and para-Cresol (p-Cresol).

27. The Antipodic isomer is collected with a reasonable enantiomeric excess (e.e), except in the case of the hexyl group (33%)

28. Zeatin is a Cytokinin derived from adenine, which occurs in the form of a cis- and a trans-isomer and conjugates

29. The molecule is both rigid and virtually stress-free. Adamantane is the most stable isomer of C 10 H 16.

30. Endosulfan: The technical mixture of this broad-spectrum insecticide consists of several isomers of which only one, the alpha isomer, has a priority higher than simazine.

31. The remarkable stability of the isomer having acetyl cis to acetoxy is attributed to neighboring group interaction, a rationale consistent with p.m.r. spectroscopic data.

32. ß-Asarone (cis-isomer of 2,4,5-trimethoxy-l-propenylbenzene) is a constituent of oil of calamus, a flavouring agent derived from the dried rhizome of Acorus

33. Chapter 3: Conformations of Alkanes and Cycloalkanes : What are Conformational Isomers ? In Chapter 1 we looked at constitutional isomers and we started to grow "an isomer tree"

34. The chosen IDLH is based on the isomer with the highest vapor pressure, that of o­Cresol, which yields a saturated concentration of 323 ppm at 25 C.

35. The ratio of ortho to para isomers in chlorination of acetanilide and benzanilide is changed in favour of the para isomer when the reactants are entrapped in cyclodextrins or amylose.

36. In the two cases studied (3-bromotropolone and 3-bromotropolone acetate) it is found that the equilibrium is shifted towards the isomer bearing the bromine atom at the 7-position.

37. It is ambivalent, meaning that it can be inside or outside of the protein molecule.The α carbon of Alanine is optically active; in proteins, only the L-isomer is found

38. It is an isomer of α-linolenic acid, which is a polyunsaturated n−3 (omega-3) fatty acid, found in rapeseed canola oil, soybeans, walnuts, flax seed (linseed oil), perilla, chia, and hemp seed.

39. Atropine, a naturally occurring belladonna alkaloid, is a racemic mixture of equal parts of d- and l-hyoscyamine, whose activity is due almost entirely to the levo isomer of the drug

40. The Aromatic solvents available from Shell chemicals companies include pure Aromatics like toluene and xylene (isomer mix) as well as a range of heavier C9 and C10 Aromatic solvents sold under the ShellSol* name

41. Alanine (plural Alanines) (biochemistry, uncountable) A nonessential amino acid 2-aminopropanoic acid found in most animal proteins Potatoes can be a good source of alanine. (countable) A specific residue, molecule, or isomer of this amino acid

42. Sodium Acetylide suspension has been used in the preparation of: • 2-ethynyladamantan-2-ol • apical-equatorial (ae) isomer of (Et 4 N) 3 [1- (2′-B 10 H 9)-2-NH 3 B 10 H 8] • trimethylsilylacetylene

43. The invention relates to producing bisplienol A from phenol and acetone by way of catalytic condensation in the presence of promoted, sulfonated ion- exchange resins, with using fractional crystallization to isolate the p,p'-BPA isomer.

44. The total alkaloid present in the root varies between 0.4 and 0.6 per cent, but as much as 1 per cent has been found, consisting of Hyoscyamine and its isomer Atropine, 0.1 to 0.6 per cent; Belladonnine and occasionally, Atropamine

45. A compound that resembles another in structure but is not necessarily an isomer (for example, 5-fluorouracil is an analogue of thymine); Analogues are often used to block enzymatic reactions by combining them with enzymes (for example, isopropyl thiogalactoside vs

46. Endocrine responses to racemic ketamine and S(+)-ketamine In contrast to stereospecific differences in the anaesthetic action of racemic ketamine and S-(+)-ketamine, the endocrine reactions to the S-(+) isomer and the racemic mixture are very similar.

47. A member of the class of oxime carbamate insecticides, Aldicarb is a mixture of <ster eo>E</stereo> and <stereo>Z</stereo> isomers; it is not known which isomer is more active.

48. In addition, the present invention relates to an antibiotic medical compound having the novel oxazolidinone derivative of the chemical formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, and a pharmaceutically permitted salt thereof, as active ingredients.

49. Of Brominated flame-retardants in foam insulation: The new Brominated polymer flame retardant is based on a co-polymer of styrene and butadiene where the polybutadiene portion is Brominated on to the 1,2 and 1,4 isomer units to give a Brominated polybutadiene

50. The fatty acid composition, total trans fatty acid content, and the geometric and positional isomer distribution of unsaturated fatty acids of subcutaneous adipose tissue of Canadians were determined using a combination of capillary gas–liquid chromatography and silver nitrate thin-layer chromatography.