cresol

Similar to guaiacol, syringol and o-cresol, trans-resveratrol possesses a basic phenolic structure and functional hydroxyl groups that enable the linkage of a sugar moiety.

After that o-cresol (9.41 g, 0.08 mol) was added in small portions, and a solution of thionyl chloride (7.59 g) in dichloromethane (10 ml) was added in drops to the mixture over a period of 1 hr.

Table 1: Target Gaseous Compounds Compound ammonia benzene m-cresol o-cresol p-cresol ethyl benzene naphthalene phenol styrene toluene 1,2,4-trimethyl benzene m-xylene o-xylene p-xylene Table 2:10-Minute Action Levels Target Fence line Sensitive-Receptor Compound 10-Minute Action 10-Minute Action Level (mg/[m.sub.3]) Level (mg/[m.sub.3]) ammonia 18.0 18.0 benzene 1.6 1.6 m-cresol 22.0 22.0 o-cresol 22.0 22.0 p-cresol 22.0 22.0 ethyl benzene 435.0 435.0 naphthalene 0.90 0.21 phenol 19.0 19.0 styrene 85.0 85.0 toluene 188.0 188.0 1,2,4- 125.0 125.0 trimethylbenzene m-xylene 435.0 435.0 o-xylene 435.0 435.0 p-xylene 435.0 435.0

Phenol, p-cresol, o-cresol, resorcinol, 5-methylresorcinol and 2,4-, 2,6-, 3,4- and 3,5-dimethylphenol were used as single substrates in the experiments.

Condensation with o-cresol in the presence of periodate forms the blue indophenol chromophore.

Yusof, "Photodegradation of o-cresol by ZnO under UV irradiation," Journal of American Science, vol.

After the reagents were completely ground, 0.10 ml of o-cresol as a solvent, 0.05 ml of TMSCl was added, the mixture was ground for 3 min, and then the reaction mixture was irradiated in the microwave oven for 6 min with 100% of the power.

After incubation, the color reagent (o-cresol in ammoniacal copper sulfate) is added, and a final absorbance measurement is taken after another 3 min.

In the case of o-cresol novolak epoxy resin, a methyl group was applied for standard carbon.

The p-aminophenol is measured colorimetrically by its conversion to indophenol in the presence of o-cresol, using perio-date as a catalyst.