{'fraction_non_alphanumeric': 0.050880626223091974, 'fraction_numerical': 0.015655577299412915, 'mean_word_length': 5.2439024390243905, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Synthesis of 1-(4-aminobutyl)-2-iminoimidazolidin-4-one aimed at preparation of a creatinine-specific antibody.

For the purpose of obtaining a creatinine-specific antibody, a creatinine derivative with 4-aminobutyl, which was served as a linker for preparing the creatinine-bovine serum albumin (BSA) conjugate, was synthesized from 4-benzylaminobutan-1-ol in 8 steps. Production of anti-creatinine antibodies was observed in two rabbits using the creatinine-BSA conjugate, although their titer was rather low.