STABLE INDICATORS FOR TEST DEVICES

摘要

1365651 Carbazole derivative BOEHRINGER MANNHEIM GmbH 2 Feb 1973 [8 Feb 1972] 5233/73 Heading C2C [Also in Division G1] The new compound 9-(γ-aminopropyl)-3- aminocarbazole is made in the example by hydrogenating 9-(#-cyanoethyl)-3-nitrocarbazole in the presence of Raney nickel. The compound 9 - (# - cyanoethyl) - 3 - nitrocarbazole is made by either (a) reacting carbazole with acrylonitrile to give 9-(#-cyanoethyl)-carbazole and nitrating the product with nitric acid or (b) reacting 3-nitro-carbazole with acrylonitrile. Salts of the compound may be formed with organic or inorganic acids (e.g. hydrochloric acid). The new compound is used as an indicator for detecting glucose in blood or urine (see Division G1).