O-phenyl phenol

The majority of preservatives are bacteriostatic rather than bacteriocidal, and consist of both acid and nonacid types. Among the acidic types are phenol, chloro-cresol, O-phenyl phenol, alkyl esters of parahydroxybenzoic acid, benzoic acid, boric acid, and sorbic acid, and their respective salts. Therefore, the pH of solution, and the pAa of the preservative need to be carefully evaluated prior to selecting a preservative for a formulation. Neutral preservatives include chlorobutanol, benzyl alcohol, and beta-phenylethyl alcohol. Under alkaline conditions, it is generally regarded that most microbial growth is significantly retarded at these pH values, which reduces the need for a preservative. 

Property Sodium propyl paraben Butyl paraben Thiabendazole o-Phenyl-phenol... 

Most of the work performed on fruits and vegetables has been done with penetrating irradiation, generally from isotope sources such as cobalt-60 (2,13y 14). The objective of that work was to extend shelf life by postharvest treatment without using chemicals such as biphenyl, or o-phenyl-phenol (3, 5). Unfortunately, using x-rays or 7-rays affects the pulp of... 

Variation of Fluorescence Signal with Polarity of the Mobile Phase. A change in polarity of the mobile phase often aids the resolution of the pesticide from interfering co-elutants. However, the relative retention area for several chromatographic peaks obtained in the fluorescence mode of detection was found to vary as the mobile phase in the HPLC was changed. The data in Table 3 show the effects of common chromatographic solvents on the fluorescence of two pesticides. For maretin and o-phenyl-phenol, the relative fluorescence intensity, as measured in a spectrofluorometer, increased substantially as the polarity of the solvent increased. However, as shown for pyrazophos in... 

See Sodium dodecyl diphenyloxide disulfonate Dowfrost HD Dowfrost. See Propylene glycol Dow Giycerine 96% USP-, Dow Giycerine 99.5% USP/EP. See Glycerin Dowicide 1 Dowicide IE. See o-Phenyl phenol... 

Nipacide MX. See Chloroxylenol Nipacide OPP. See o-Phenyl phenol Nipacide PC. See p-Chloro-m-cresol Nipacide PTAP. See p-t-Amylphenol Nipacide PX, Nipacide PXBP/USP Nipacide PX-R. See Chloroxylenol Nipacide SOPP. See Sodium o-phenylphenate Nipacide TCM30. See2-Thiocyanomethylthiobenzothiazole Nipagin A Potassium. See Potassium ethyl paraben... 

Preventol O Extra Flakes, Preventol OF, Preventol OF Plus. See o-Phenyl phenol Preventol ON Extra Flakes, Preventol ON-S. See Sodium o-phenylphenate Preventol P100. See 2-Bromo-2-nitropropane-1,3-diol... 

Formaldehyde, glyoxal, glutaraldehyde, polyaldehyde (polyacrolein), aldehyde-amine condensation products, aldehyde-glycol condensation products, bronopol o-Phenyl phenol, o-benzyl-jn-chlorophenol,p-chloro-m-xylenol, o, p, p -trichloro-o -hydroxydiphenyl ether (Triclosan) Nonylphenoxypoly(ethyleneoxy) ethanol-iodine complex, ethoxylated nonyl phenol-iodine complex, polyvinyl pyrrolidone-iodine complex... 

The Pd/AC catalyst exhibited a good activity for HDO of DBF to 2-phenyl phenol at 1 MPa and 673 The HYD of the aromatic ring became more evident by increasing H2 pressure. Based on the effect of H2 pressure and temperature, the consecutive-pathway mechanism was proposed, i.e. the conversion of DBF to o-phenyl phenol in the first stage followed by HDO of the latter to BPh and the HYD of BPh to cyclohexylbenzene. 

Aberer W, Reiter E, Ziegler V, et al. (1991) The importance of including thiomersal in standard screening series for allergic contact dermatitis. Am J Contact Dermat 2 110-112 Adams RM (1981) Allergic contact dermatitis due to o-phenyl-phenol. Contact Dermatitis 7 332 Adams RM (1986) Occupational skin disease. WB Saunders, Philadelphia, p 448... 

From the facts there is no foundation for a blanket rejection of phenol derivatives. On the contrary it must be assumed, for many reasons, that it will not be possible to dispense with special phenolics as microbicides for material protection. After all, some of them, such as o-phenyl-phenol and / -chloro-m-cresol, meet the requirement now expected of such microbicides very satisfactorily. 

Chloro-2"phenyl-phenol — MonocMoro-o-phenyl-phenol (MCOPP)... 

Mixtures of Borax with o-phenyl-phenol (OPP) possess synergistic effects against some species of wood staining fungi such as Aureobasidium pullulans and Sclerophoma pityophila. The marked synergism may be easily calculated from the minimum inhibition concentrations listed in Table 70 using the calculation method of Kull et al. (1961). 

---