. Cellular toxins; or, The chemical factors in the causation of disease. Poisons; Pathology; Bacteria. METHYL QUINOLIN. 453 S mi !.COOH. o-Methyl Quihouh. Kyndbenio Acid, or y ozY p QumoMN Cabbonic Acid. The latter by splitting off the carboxyl group yields kynurin, the homologue of indoxyl. The methyl quinolin may be compared with skatol or j8-methyl indol. The proteid molecule is unquestionably the source of the quinolin as well as of the indol derivatives. The existence of pyrrolidin carbonic acid among the cleavage products of proteids has been noted on p. 448. The base is a highly refract
. Cellular toxins; or, The chemical factors in the causation of disease. Poisons; Pathology; Bacteria. METHYL QUINOLIN. 453 S mi !.COOH. o-Methyl Quihouh. Kyndbenio Acid, or y ozY p QumoMN Cabbonic Acid. The latter by splitting off the carboxyl group yields kynurin, the homologue of indoxyl. The methyl quinolin may be compared with skatol or j8-methyl indol. The proteid molecule is unquestionably the source of the quinolin as well as of the indol derivatives. The existence of pyrrolidin carbonic acid among the cleavage products of proteids has been noted on p. 448. The base is a highly refractive, colorless oil possessing a faint quinolin odor which is very pronounced on warming. It is readily volatile with steam and fumes when hydrochloric acid is held near it. It is readily soluble in ether, chloroform, alcohol and in mineral acids ; insoluble in alkalis and sparingly soluble in both hot and cold water. It forms addition products with methyl iodid and with bromin. With phthalic anhydrid it yields quinaldin yellow. The platinochlorid, (Cj|,)2PtCl^, forms characteristic yellow needles which melt at 226°— 230°. It is sparingly soluble in cold water and on heating in a test-tube it decomposes, giving rise to a volatile oil which on cooling yields transparent colorless needles. The aurochlorid is precipitated as fine slender yellow needles which melt at 153°. It is more soluble than the preceding com- pound. The silver nitrate compound forms colorless needles. The bichromate, {C^^^\IS.^Tfi^, is extremely characteristic and is precipitated as a yellowish red oil which promptly crystallizes, forming needles which in form and color resemble those of the platinum salt. It melts with decomposition at 130-140°. A ferrocyanid can also be prepared. The picrate forms yellow crystals which on rapid heating melt at 177°. The zinc chlorid compound, (Cj„), according to Aldrich and Jones is especially useful for the separation and purifi- cation of the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpoisons, bookyear1902
