{"id":794,"date":"2026-09-01T17:35:05","date_gmt":"2026-09-01T17:35:05","guid":{"rendered":"https:\/\/nhdbio.com\/resources\/oxytocin-nonapeptide-disulfide-stability-quality-guide\/"},"modified":"2026-09-08T07:30:41","modified_gmt":"2026-09-08T07:30:41","slug":"oxytocin-nonapeptide-disulfide-stability-quality-guide","status":"publish","type":"post","link":"https:\/\/nhdbio.com\/cn\/oxytocin-nonapeptide-disulfide-stability-quality-guide\/","title":{"rendered":"\u50ac\u4ea7\u7d20\u8bc6\u522b\u6307\u5357\uff1a\u4e5d\u80bd\u3001\u4e8c\u786b\u952e\u548c\u7a33\u5b9a\u6027"},"content":{"rendered":"<p class=\"pim-standfirst wp-block-paragraph\">\u50ac\u4ea7\u7d20\u662f\u4e00\u79cd\u73af\u72b6\u4e5d\u80bd\uff0c\u5177\u6709 Cys1-Cys6 \u4e8c\u786b\u6865\u548c C \u672b\u7aef\u9170\u80fa\u3002\u5e8f\u5217\u3001\u4e8c\u786b\u952e\u72b6\u6001\u3001\u53cd\u79bb\u5b50\u3001\u805a\u96c6\u548c\u6548\u529b\u662f\u4e0d\u540c\u7684\u8d28\u91cf\u5c5e\u6027\u3002<\/p><div class=\"wp-block-group pim-key-takeaways\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><h2 class=\"wp-block-heading\">\u8bc1\u636e\u4e00\u76ee\u4e86\u7136<\/h2><ul class=\"wp-block-list\"><li>PubChem \u5217\u51fa\u4e86\u5e8f\u5217 CYIQNCPLG\u3001\u5f0f C43H66N12O12S2 \u548c\u5206\u5b50\u91cf 1007.2 g\/mol\u3002<\/li><li>\u964d\u89e3\u7814\u7a76\u53d1\u73b0\uff0c\u5728 pH 9.0 \u6761\u4ef6\u4e0b\u5b8c\u6574\u50ac\u4ea7\u7d20\u635f\u5931\u6700\u5feb\uff0c\u5728 pH 4.5 \u6d4b\u8bd5\u6761\u4ef6\u4e0b\u635f\u5931\u6700\u6162\u3002<\/li><li>\u5df2\u786e\u5b9a\u7684\u964d\u89e3\u9014\u5f84\u5305\u62ec\u8131\u9170\u80fa\u3001\u786b\u6865\u6539\u53d8\u3001\u4e8c\u805a\u4f53\u3001\u03b2-\u6d88\u9664\u548c\u66f4\u5927\u7684\u805a\u96c6\u4f53\u3002<\/li><\/ul><\/div><\/div><figure class=\"wp-block-image size-full pim-article-figure\"><img loading=\"lazy\" decoding=\"async\" width=\"1672\" height=\"941\" src=\"http:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/oxytocin-quality.webp\" alt=\"\u8bb0\u5f55\u80bd\u7a33\u5b9a\u6027\u548c HPLC \u5de5\u4f5c\u6d41\u7a0b\" class=\"wp-image-778\" srcset=\"https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/oxytocin-quality.webp 1672w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/oxytocin-quality-300x169.webp 300w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/oxytocin-quality-1024x576.webp 1024w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/oxytocin-quality-768x432.webp 768w, https:\/\/nhdbio.com\/wp-content\/uploads\/2026\/09\/oxytocin-quality-1536x864.webp 1536w\" sizes=\"auto, (max-width: 1672px) 100vw, 1672px\" \/><figcaption class=\"wp-element-caption\">AI \u751f\u6210\u7684\u7f16\u8f91\u63d2\u56fe\u8bf4\u660e\u4e86\u5206\u6790\u5de5\u4f5c\u6d41\u7a0b\u3002\u5b83\u4e0d\u63cf\u8ff0\u4f9b\u5e94\u7684\u4ea7\u54c1\u3001\u53d1\u5e03\u7684\u6279\u6b21\u3001\u6279\u51c6\u7684\u914d\u65b9\u6216\u6d4b\u5b9a\u7ed3\u679c\u3002<\/figcaption><\/figure><h2 class=\"wp-block-heading\">\u8eab\u4efd\u8bb0\u5f55<\/h2><p class=\"wp-block-paragraph\">\u4e59\u9178\u76d0\u540d\u79f0\u63cf\u8ff0\u4e86\u6297\u8861\u79bb\u5b50\u80cc\u666f\uff0c\u5e94\u5305\u542b\u5728\u542b\u91cf\u8ba1\u7b97\u4e2d\u3002\u80bd\u7684 C \u672b\u7aef\u9170\u80fa\u548c\u6b63\u786e\u7684\u5206\u5b50\u5185\u4e8c\u786b\u952e\u5bf9\u4e8e\u53c2\u8003\u8eab\u4efd\u81f3\u5173\u91cd\u8981\u3002<\/p><div class=\"wp-block-group pim-evidence-table\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"pim-evidence-row\"><strong>\u987a\u5e8f<\/strong><span>Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH2<\/span><\/div><div class=\"pim-evidence-row\"><strong>\u6212\u6307<\/strong><span>Cys1 \u548c Cys6 \u4e4b\u95f4\u7684\u4e8c\u786b\u6865<\/span><\/div><div class=\"pim-evidence-row\"><strong>\u5206\u5b50\u5f0f\u548c\u8d28\u91cf<\/strong><span>C43H66N12O12S2; 1007.2 g\/mol<\/span><\/div><div class=\"pim-evidence-row\"><strong>\u516c\u5171\u5316\u5b66<\/strong><span>CID 439302<\/span><\/div><div class=\"pim-evidence-row\"><strong>\u6279\u8bc4QC<\/strong><span>\u5b8c\u6574\u8d28\u91cf\u3001\u4e8c\u786b\u952e\u72b6\u6001\u3001\u76f8\u5173\u80bd\u3001\u805a\u96c6\u3001\u542b\u91cf\u3001\u6548\u529b\u548c\u7a33\u5b9a\u6027<\/span><\/div><\/div><\/div><h2 class=\"wp-block-heading\">\u5206\u6790\u548c\u8bc1\u636e\u8fb9\u754c<\/h2><p class=\"wp-block-paragraph\">pH 2.0\u30014.5\u30017.0 \u548c 9.0 \u4e0b\u7684\u52a0\u901f\u964d\u89e3\u8868\u73b0\u51fa pH \u548c\u6e29\u5ea6\u4f9d\u8d56\u6027\u4f2a\u4e00\u7ea7\u635f\u5931\u3002 RP-HPLC\u3001\u5c3a\u5bf8\u6392\u9664\u65b9\u6cd5\u548c MS\/MS \u56de\u7b54\u4e86\u6709\u5173\u5b8c\u6574\u80bd\u548c\u964d\u89e3\u4ea7\u7269\u7684\u8865\u5145\u95ee\u9898\u3002<\/p><p class=\"wp-block-paragraph\">\u6f84\u6e05\u7684\u6eb6\u6db2\u548c\u5339\u914d\u7684\u5206\u5b50\u91cf\u4e0d\u80fd\u786e\u5b9a\u751f\u7269\u6548\u529b\u6216\u6392\u9664\u4f4e\u6c34\u5e73\u7684\u805a\u96c6\u4f53\u3002\u6210\u54c1\u836f USP \u5355\u4f4d\u5c5e\u4e8e\u7ecf\u8fc7\u9a8c\u8bc1\u7684\u914d\u65b9\uff0c\u4e0d\u5e94\u63a8\u65ad\u4e3a\u4e0d\u76f8\u5173\u7684\u7814\u7a76\u6750\u6599\u3002<\/p><h2 class=\"wp-block-heading\">\u7f16\u8f91\u89c4\u5219<\/h2><p class=\"wp-block-paragraph\">\u8bf4\u660e\u6240\u5f15\u7528\u8bb0\u5f55\u652f\u6301\u7684\u786e\u5207\u6750\u6599\u3001\u5f62\u5f0f\u3001\u6a21\u578b\u6216\u7fa4\u4f53\u548c\u7ec8\u70b9\u3002\u8bf7\u52ff\u5c06\u673a\u68b0\u5408\u7406\u6027\u3001\u52a8\u7269\u7ed3\u679c\u3001\u5b98\u65b9\u6210\u54c1\u6807\u7b7e\u6216\u5206\u6790\u6d4b\u8bd5\u8f6c\u5316\u4e3a\u6709\u5173\u4e0d\u76f8\u5173\u76ee\u5f55\u6279\u6b21\u7684\u58f0\u660e\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u50ac\u4ea7\u7d20\u662f\u4e00\u79cd\u73af\u72b6\u4e5d\u80bd\uff0c\u5177\u6709 Cys1-Cys6 \u4e8c\u786b\u6865\u548c C \u672b\u7aef\u9170\u80fa\u3002\u5e8f\u5217\u3001\u4e8c\u786b\u952e\u72b6\u6001\u3001\u53cd\u79bb\u5b50\u3001\u805a\u96c6\u548c\u6548\u529b\u662f\u4e0d\u540c\u7684\u8d28\u91cf\u5c5e\u6027\u3002<\/p>","protected":false},"author":1,"featured_media":778,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pim_family_ids":"354","pim_article_type":"Evidence and material-quality guide","pim_evidence_level":"PubChem and DailyMed identity plus primary degradation-kinetics research","pim_reviewer":"Site evidence editorial team","pim_reviewed_date":"2026-09-02","pim_editorial_note":"Source-checked on 2026-09-02. Null results, sample size, model\/population limits and regulatory scope are retained. This is not medical advice, a customer case or validation of a catalog lot.","pim_review_status":"reviewed","pim_review_reason":"Primary and official sources, numerical results, null findings, limitations, product-evidence boundary and image disclosure checked for batch 4.","pim_creation_method":"This article discusses the source records listed below, with the study models and limitations stated alongside the findings. AI-assisted drafting and image generation were used. The reference list identifies the records behind this article; it is not an independent peer review or verification of a supplied catalog lot.","pim_sources":"[{\"title\":\"DailyMed Oxytocin Injection, USP label\",\"url\":\"https:\/\/dailymed.nlm.nih.gov\/dailymed\/lookup.cfm?setid=4c4c4b69-8bf7-472c-aafe-29805ba5c965&version=2\",\"note\":\"Official U.S. prescription label, updated March 2025.\"},{\"title\":\"Oxytocin physiology, pharmacology and labor management\",\"url\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/37460365\/\",\"note\":\"2024 clinical review; PMID 37460365.\"},{\"title\":\"Oxytocin degradation kinetics and products\",\"url\":\"https:\/\/pubmed.ncbi.nlm.nih.gov\/19343484\/\",\"note\":\"Primary formulation-degradation study; PMID 19343484.\"},{\"title\":\"PubChem Oxytocin record\",\"url\":\"https:\/\/pubchem.ncbi.nlm.nih.gov\/compound\/439302\",\"note\":\"Sequence, disulfide, formula and molecular weight; CID 439302.\"}]","footnotes":""},"categories":[20],"tags":[],"class_list":["post-794","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evidence-quality-guides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Oxytocin Identity Guide: Nonapeptide, Disulfide and Stability<\/title>\n<meta name=\"description\" content=\"Oxytocin is a cyclic nonapeptide with a Cys1\u2013Cys6 disulfide bridge and a C-terminal amide. 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