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Ascorbic acid Vitamin C CAS 50-8-7
Ascorbic acid CAS 50-81-7 or Vitamin C, L-ascorbic acid, is an essential nutrient for humans and certain other animal species. Ascorbic acid is a naturally ooccurring organic compound with antioxidant properties. It is a white solid and dissolves well in water to give mildly acidic solutions. Because it is derived from glucose, many animals are able to produce it, but humans require it as part of their nutrition.
Phenoxyacetic acid (CAS 122-59-8), a kind of off-white power, with melting point 98-100 °C(lit.),boiling point 285 °C,can soluble in water. Phenoxyacetic acid naturally exists in cocoa beans, sour sweet aroma, taste like honey. It can used in the manufacture of dyes, drugs, pesticides, etc., also can be used as a fungicide; and it can also be used as a herbicide and plant hormone and the central nervous excitement medicine intermediate.
Hydrocortisone CAS 50-23-7 is a white crystalline powder and it is insoluble in water but soluble in acetone and ethanol. Hydrocortisone is the treatment of choice for adrenocortical insufficiency. It can be given by mouth or by injection.After long term use, if stopped this should be done slowly. Hydrocortisone is the pharmaceutical term for cortisol used in oral administration, intravenous injection, or topical application.
m-Cresol( CAS 108-39-4) is a colorless liquid with a sweet tarry odor. Sinks and mixes slowly with water.m-Cresol is sensitive to air, light and heat. m-Cresol is also hygroscopic. m-Cresol can react vigorously with strong oxidizers and strong bases. m-Cresol reacts violently with nitric acid, oleum, chlorosulfonic acid, metals and strong acids. If the water content is below approximately 0.3% and the temperature above 248째 F, the corrosion of aluminum and its alloys may occur violently. m-Cresol will attack some forms of plastics, coatings and rubber.It is mainly used as analytical reagent and organic synthesis intermediates.