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Color reaction
About: Color reaction is a research topic. Over the lifetime, 1194 publications have been published within this topic receiving 19579 citations.
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Patent•
30 Oct 1981
TL;DR: An antibiotic substance, anthramycin D, having the following physico-chemical and biological properties: Elemental analysis; C 6058, H 750% N 204; molecular weight, 1,336 (by titration equivalent); melting point, 220- 229 degC;[alpha]D =-690 deg(C=071, methanol); solubility, easily soluble in methanOL, etc, soluble in acetone etc, slightly soluble in ethyl ether etc, hardely solbule in petroleum ether and water; color reaction, develops
Abstract: NEW MATERIAL:An antibiotic substance, anthramycin D, having the following physico-chemical and biological properties: Elemental analysis; C 6058%, H 750% N 204%; molecular weight, 1,336 (by titration equivalent); melting point, 220- 229 degC;[alpha]D =-690 deg(C=071, methanol); solubility, easily soluble in methanol, etc, soluble in acetone etc, slightly soluble in ethyl ether etc, hardely solbule in petroleum ether and water; color reaction, develops olive blue color by concentrated sulfuric acid, positive KMnO4 reaction, iron chloride reaction, etc; acidic white powder; exhibits growth inhibition activity to bacilli such as Bacillus subtilis and Gram-positive bacteria belonging to Micrococcus genus USE:An agent having selective activity to inhibit the growth of Gram-positive bacilli, cancer cells, etc PROCESS:Bacterial strain belonging to Micromonospora geus, eg Micromonospora sp T-90 (FERM-P No5005) is cultured at 25-35 degC under nearly neutral condition pref under aeration and agitation
1 citations
Patent•
13 Aug 1984
TL;DR: The antibiotic substance pinkramycin having the following physical properties: Appearance, pale yellow plate crystal; (B) melting point, 165 deg.C; (C) specific rotation, [alpha] D=4.41 (c=0.77, methanol); (D) elementary analysis (%), C 42.76, H 6.59, N 0.83; (E) molecular formula, C60H111-118NO51; (F) molecular weight, about 1,200 (gel filtration); (G) color reaction, positive to
Abstract: NEW MATERIAL:The antibiotic substance pinkramycin having the following physical properties. (A) Appearance, pale yellow plate crystal; (B) melting point, 165 deg.C; (C) specific rotation, [alpha] D=4.41 (c=0.77, methanol); (D) elementary analysis (%), C 42.76, H 6.59, N 0.83; (E) molecular formula, C60H111-118NO51; (F) molecular weight, about 1,200 (gel filtration); (G) color reaction, positive to aniline phthalate reaction, TTC-Na reaction, naphthoresorcinol reaction, and negative to ninhydrin reaction, Sakaguchi's reaction, etc.; (H) solubility, soluble in water, methanol, ethanol, ether, acetone, ethyl acetate, etc., and insoluble in petroleum ether, chloroform, etc. USE:An antibiotic substance. PREPARATION:A bacterial strain such as Streptomyces carzinostaticus var. F41 cloya (FERM-P No.2257, ATCC No.15945), etc., is cultured in a liquid medium under aeration and agitation, preferably at 25-30 deg.C and 7.5-5pH for 24-180hr.
1 citations
Patent•
21 Jul 1987
TL;DR: In this article, a novel antibiotic oxaspirol C (C=0.8, CH3OH) has been used against a mold of certain kind, showing antitumor action.
Abstract: NEW MATERIAL:Novel antibiotic oxaspirol C shown by the formula. USE:An antibiotic having antimicrobial activity against a mold of certain kind, showing antitumor action. PREPARATION:Variant No.54-1 (FERM P-8530) of Rhodotorula glutinis T-110 is cultivated and oxaspirol is collected from a culture mixture. The antibiotic has the following physical and chemical properties. Properties of substance: oily state at normal temperature. Specific rotatory power [alpha]D -430 deg. (C=0.8, CH3OH). Solubility: readily soluble in chloroform, ethyl acetate, acetone and methanol, slightly soluble in benzene, insoluble in water and n-hexane. Color reaction: positive in iodine gas and KMnO4 reagent, negative in FeCl3, ninhydrin, and indophenol reagent, etc.
1 citations