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1. Hydroxyl has an extremely oxidizing nature.

2. The hydroxyl ion has a negative charge.

3. Both the free hydroxyl groups readily undergo esterification.

4. Variation of concentration of hydroxyl radical was computed.

5. Objective: To observe the influence of 23- hydroxyl betulinic acid(23-HBA) on the proliferative, migratory ability and morphological change of blood vessel endothelial cell line ECV-304.

6. A method for determining hydroxyl value of epoxy - containing polyester, namely acetyl chloride method is introduced.

7. The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.

8. Twelve 20 - hydroxyl ester analogues of camptothecin were prepared and evaluated in vitro antitumor activity.

9. A hydroxyl ammonium sulfate ( HAS ) accelerated phosphating process has been studied.

10. A further reaction produces an additional hydroxyl ion to maintain the attack on the network.

11. Polyvalent Metal Hydroxyl Complexes.

12. The total phenol extract mainly contains hydroxyl mandelic, 3, 4-dihydroxy phenylethyl alcohol, salidroside and indicant compound and other derivatives with salidroside as the mother nucleus.

13. Hydroxyl magnetic microspheres were prepared with suspension polymerization and then activated withepichlorohydrin for immobilization of penicillin G acylase.

14. The production of extracellular hydroxyl radical(·OH) scavengers during lignocellulose degradation by white-rot fungus Lentinula edodes AX was studied.

15. Up to about 25 percent moisture content the whole of the water in wood is held in association with the hydroxyls in the cell walls.

16. The clays consist of silica tetrahedra and the octahedra contain magnesia surrounded by oxygen atoms and hydroxyl groups.

17. In a similar way, sheets of octahedra are formed from aluminium, oxygen and hydroxyl groups.

18. It consists of many glucose units, in each of which one of the hydroxyl groups has been replaced by an acetylamine group (CH3CONH).sentencedict.com

19. X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.

20. A solvent resistant adhesive obtained by the crosslinking of a hydroxyl or urea or hydrocarbon terminated unsaturated polyurethane or polyurethane-urea polymer with a peroxide or a silicone hydride.

21. Nitrophenyl ferulate was synthesized in one step without the protection of the hydroxyl of ferulic acid in the presence of 1,3 dicyclohexylcarbodiimide(DCC) as the catalyst.

22. The production process of the cosmetics resisting skin ageing includes heating triterpene glycoside containing hydroxyl group to 80 deg. c for dissolving, and mixing with other cosmetics materials.

23. The SG copolymer can react efficiently with the amide and carboxyl group of PA6 as well as the hydroxyl group of PPO in blending process, resulting into graft copolymer.

24. The reduction of the carbonyl group on haloperidol to hydroxyl group has almost no effect on its vasodilative activity.

25. However, modified AZT molecules lack a specific chemical group (a hydroxyl group) that would allow DNA replication to continue. This results in premature termination of DNA synthesis.

26. ObjectiveTo study the extraction and identification of total flavonoids from Eriocaulon buergerianum Koern and its Scavenging activity on hydroxyl free radical.

27. The present invention relates to a microgel latex with modified hydroxyl group and a property of stable storage.

28. Straight chain alcohols range from 10 to 33 with the hydroxyl group at every theoretically possible positions.

29. All K atoms coordinate with O atoms of phenolic hydroxyl group and nitro - group simultaneously.

30. Key compounds under review included vitamins, antioxidants , alpha - hydroxyl acids, moisturizers, pentapeptides and botanicals.