DL-Menthol (89-78-1) fiber drum

DL-Menthol could be used as OLED intermediates in OLED material industry. It is a kind of yellow powder which is insoluble in water but soluble in organic solvents. It is packed in 25 kgs fiber drum, while it can also be packed according to customers specific requirements.


2-(1-methylethyl)-5-methyl-cyclohexanol (89-78-1) manufacturers

2-(1-methylethyl)-5-methyl-cyclohexanol manufacturers produce 2-(1-methylethyl)-5-methyl-cyclohexanol as one kind of OLED intermediates, pharmacutical intermediates, electronic chemicals. They provide 2-(1-methylethyl)-5-methyl-cyclohexanol as raw materials for other chemical factories. Trusyn Chem-Tech Co., Ltd. as one of the leading manufacturers of 2-(1-methylethyl)-5-methyl-cyclohexanol is specialized in producing 2-(1-methylethyl)-5-methyl-cyclohexanol and other OLED intermediates.

Analytic laboratory methods

(1)A simultaneous gas-liquid chromatographic determination for methyl salicylate & menthol in topical analgesic formulations is reported.
(2)Menthol--official final action; colorimetric method; gas chromatographic method.
(3)Aoac 929.14. menthol in drugs. saponification method.
(4)High-performance liq chromatography (hplc) with 3% ethyl acetate/isooctance effectively separated menthol isomers without the need for unstable gas chromatographic phases or expensive reverse-phase hplc systems.
(5)Quantitative analysis of peppermint oil, for evaluation of the effects of photoperiod, temp, & time of harvest on levels of menthol was possible by gas chromatography on a capillary coated with sp-1000. recoveries were 97-98% for menthol, relative std deviations were 1.70-3.34%.