{"id":2625,"date":"2026-09-01T09:15:58","date_gmt":"2026-09-01T09:15:58","guid":{"rendered":"https:\/\/pevropeptides.com\/?post_type=product&#038;p=2625"},"modified":"2026-09-01T09:23:23","modified_gmt":"2026-09-01T09:23:23","slug":"acetic-acid-water-aa-water","status":"publish","type":"product","link":"https:\/\/pevropeptides.com\/en_gb\/product\/acetic-acid-water-aa-water\/","title":{"rendered":"Acetic Acid Water (AA Water)"},"content":{"rendered":"<h2>Description<\/h2>\n<p><strong>Acetic Acid Water (AA Water)<\/strong> is sterile water that <strong>0.6% acetic acid<\/strong> contains as an acidifying agent. The addition of acetic acid lowers the pH, thereby improving the solubility and stability of certain difficult-to-dissolve peptides during the reconstitution or dilution of peptide and protein formulations in a laboratory setting.<\/p>\n<p>Some research peptides do not dissolve or dissolve poorly in regular bacteriostatic or sterile water. A slightly acidic environment helps bring these compounds into full solution without compromising molecular integrity \u2014 this makes AA Water the solvent of choice for hard-to-dissolve research peptides.<\/p>\n<h2>Product specifications<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Specification<\/th>\n<th>Value<\/th>\n<\/tr>\n<tr>\n<td>Type<\/td>\n<td>Sterile acetic acid water (no peptide)<\/td>\n<\/tr>\n<tr>\n<td>Acidifying agent<\/td>\n<td>0.6% acetic acid<\/td>\n<\/tr>\n<tr>\n<td>Sterilization<\/td>\n<td>Aseptically bottled in a cleanroom environment<\/td>\n<\/tr>\n<tr>\n<td>pH range<\/td>\n<td>2.5 \u2013 4.0 (slightly acidic)<\/td>\n<\/tr>\n<tr>\n<td>Form<\/td>\n<td>Clear, colorless aqueous solution<\/td>\n<\/tr>\n<tr>\n<td>Shelf life after opening<\/td>\n<td>Up to approximately 28 days, provided it is stored correctly.<\/td>\n<\/tr>\n<tr>\n<td>Storage conditions<\/td>\n<td>Store in a cool, dry place, protected from direct light.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Application in research<\/h2>\n<ul>\n<li><strong>Reconstitution of difficult-to-dissolve lyophilises<\/strong> \u2014 dissolving freeze-dried peptides that require an acidic environment to fully dissolve.<\/li>\n<li><strong>pH reduction<\/strong> \u2014 the acidic environment improves the solubility and stability of sensitive research compounds.<\/li>\n<li><strong>Dilution<\/strong> \u2014 controlled dilution of concentrated stock solutions to workable investigation concentrations.<\/li>\n<li><strong>Compatibility<\/strong> \u2014 specifically suitable for peptides that do not dissolve or dissolve poorly in regular bacteriostatic or sterile water.<\/li>\n<\/ul>\n<h2>Frequently Asked Questions<\/h2>\n<p><strong>What is Acetic Acid Water (AA Water)?<\/strong><br \/>AA Water is sterile water with 0.6% acetic acid as an acidifier. The acetic acid lowers the pH, allowing poorly soluble peptides to dissolve more easily.<\/p>\n<p><strong>What is the difference compared to bacteriostatic water?<\/strong><br \/>Bacteriostatic water contains 0.9% benzyl alcohol as a preservative and is virtually pH-neutral \u2014 suitable for most peptides and for multi-dose use. AA Water is slightly acidic due to the acetic acid and is specifically intended for peptides that require an acidic environment to dissolve completely.<\/p>\n<p><strong>When do I use AA Water instead of bacteriostatic water?<\/strong><br \/>Use AA Water when a research peptide does not dissolve or dissolves poorly in regular bacteriostatic or sterile water. Always consult the dissolution guidelines for the relevant compound before choosing a solvent.<\/p>\n<p><strong>How long does an opened bottle remain usable?<\/strong><br \/>Under proper storage conditions (cool, dry, protected from light) up to approximately 28 days after opening. Mark the opening date on the vial and use a clean, sterile needle for each aspiration.<\/p>\n<blockquote>\n<p><strong>Disclaimer:<\/strong> Intended solely for research purposes. Not intended for human or animal consumption, medical, diagnostic, therapeutic, or cosmetic applications. Buyer is 18+ and confirms the research context.<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p><strong><strong>Acetic Acid Water<\/strong> (AA Water)<\/strong> is sterile water that <strong>0.6% acetic acid<\/strong> contains as an acidifying agent. The addition of acetic acid lowers the pH, thereby improving the solubility and stability of certain difficult-to-dissolve peptides during the reconstitution or dilution of peptide and protein formulations in a laboratory setting.<\/p>","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[127],"product_tag":[],"class_list":["post-2625","product","type-product","status-publish","product_cat-research-supplies","first","instock","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/product\/2625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/comments?post=2625"}],"version-history":[{"count":1,"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/product\/2625\/revisions"}],"predecessor-version":[{"id":2694,"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/product\/2625\/revisions\/2694"}],"wp:attachment":[{"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/media?parent=2625"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/product_brand?post=2625"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/product_cat?post=2625"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pevropeptides.com\/en_gb\/wp-json\/wp\/v2\/product_tag?post=2625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}