7-(2-Guanidinoethyl)theophylline hemisulfate;7-(beta-Guanidinoethyl)theophylline hemisulphate;Theophylline, 7-(2-guanidinoethyl)-, hemisulfate;AC1MIL4K;LS-149567;65960P;2-[2-(1,3-dimethyl-2,6-dioxopurin-7-yl)ethyl]guanidine; sulfuric acid;63077-40-7
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