Medicinal preparations for photosensitizing agents used as a dermatologic drug or prodrug for the treatment of skin cancer by phototherapy; Chemical reagents for medical and veterinarian use; Chemical reagents for cultures of microorganisms for medical use, namely, in culture media for the isolation and identification of the bacteria strain Escherichia coli O157:H7; Chemical preparations for medical purposes, namely, for Cholesterol testing to prevent possible consequences of Hypercholesterolemia such as atherosclerosis, coronary heart disease and other forms of cardiovascular diseases; Chemical preparations for medical purposes, namely, for novel enzyme responsive inhibitors that allow for modifications of the composition of microbial communities; Chemical preparations for medical purposes, namely, for immunology research; Organic chemical preparations for medical purposes, namely, immunomodulatory compounds with anti-inflammatory properties; Organic chemical preparations for medical laboratory analysis purposes, namely, for medical detection, identification and quantification of strains of pathogenic bacteria; Chemical preparations for medical laboratory analysis purposes, namely, for medical immunological and microbiological blood testing; Chemical preparations for medical laboratory analysis purposes, namely, used as a routine medical supplement to blood culture media in vitro to inhibit blood coagulation and to improve the detection limits for individual microorganisms; Chemical preparations for medical laboratory analysis purposes, namely, for medical detection of pathogenic bacteria, namely, various strains of Listeria, Clostridium, Bacillus and Staphylococcus; Chemical preparations for medical laboratory analysis purposes, namely, for the medical detection and quantification of bacteria strains of Escherichia coli; Medical preparations for the diagnosis of Staphylococus aureus, in particular for Methicillin-resistant Staphylococcus aureus (MRSA); Medical enzyme