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heptane" subheadline="<span class="btArticleDate">2024-05-11</span><span class="btArticleAuthor"><a href="https://www.newtopchem.com/archives/author/admin" class="btArticleAuthorURL">by admin</a></span>" font="" font_weight="" font_size="" color_scheme="" color="" align="" url="https://www.newtopchem.com/archives/48624" target="_self" html_tag="h2" size="normal" dash="" el_id="" el_class="" el_style="" supertitle_position="outside" ignore_fe_editor="true"]