{"id":1761,"date":"2025-03-07T12:06:51","date_gmt":"2025-03-07T12:06:51","guid":{"rendered":"https:\/\/vivalr.com\/product\/1761.html"},"modified":"2025-03-07T12:25:06","modified_gmt":"2025-03-07T12:25:06","slug":"factory-supply-4-nitrophthaldiamide-cas-13138-53-9-with-low-price","status":"publish","type":"product","link":"https:\/\/vivalr.com\/pt\/product\/1761.html","title":{"rendered":"Fornecimento de f\u00e1brica de 4-Nitroftaldiamida CAS 13138-53-9 com pre\u00e7o baixo"},"content":{"rendered":"<div class=\"user-guide\">\n<h1>4-Nitroftaldiamida CAS 13138-53-9: Guia t\u00e9cnico do utilizador<\/h1>\n<p>        <!-- Table of Contents --><\/p>\n<div class=\"toc\">\n<h2>\u00cdndice<\/h2>\n<ul>\n<li><a href=\"#introduction\">1. Introdu\u00e7\u00e3o ao produto<\/a><\/li>\n<li><a href=\"#specifications\">2. Especifica\u00e7\u00f5es t\u00e9cnicas<\/a><\/li>\n<li><a href=\"#applications\">3. Principais aplica\u00e7\u00f5es<\/a><\/li>\n<li><a href=\"#usage\">4. Diretrizes de utiliza\u00e7\u00e3o<\/a><\/li>\n<li><a href=\"#case-studies\">5. Estudos de casos industriais<\/a><\/li>\n<li><a href=\"#contact\">6. Informa\u00e7\u00f5es de contacto<\/a><\/li>\n<\/ul><\/div>\n<p>        <!-- Content Sections --><\/p>\n<div class=\"content-section\" id=\"introduction\">\n<h2>1. Introdu\u00e7\u00e3o ao produto<\/h2>\n<p>A 4-Nitroftaldiamida (CAS 13138-53-9) \u00e9 um intermedi\u00e1rio qu\u00edmico de alta pureza amplamente utilizado na s\u00edntese farmac\u00eautica e na produ\u00e7\u00e3o de especialidades qu\u00edmicas. Este composto arom\u00e1tico apresenta um grupo funcional nitro e uma estrutura de diamida, permitindo uma reatividade vers\u00e1til em reac\u00e7\u00f5es org\u00e2nicas.<\/p>\n<\/p><\/div>\n<div class=\"content-section\" id=\"specifications\">\n<h2>2. Especifica\u00e7\u00f5es t\u00e9cnicas<\/h2>\n<ul>\n<li><strong>N\u00famero CAS:<\/strong> 13138-53-9<\/li>\n<li><strong>F\u00f3rmula molecular:<\/strong> C<sub>8<\/sub>H<sub>7<\/sub>N<sub>3<\/sub>O<sub>4<\/sub><\/li>\n<li><strong>Apar\u00eancia:<\/strong> P\u00f3 cristalino amarelo p\u00e1lido<\/li>\n<li><strong>Pureza:<\/strong> \u226599% (HPLC)<\/li>\n<li><strong>Ponto de fus\u00e3o:<\/strong> 250-253\u00b0C<\/li>\n<li><strong>Armazenamento:<\/strong> 2-8\u00b0C em recipiente herm\u00e9tico<\/li>\n<li><strong>Prazo de validade:<\/strong> 24 meses<\/li>\n<\/ul><\/div>\n<div class=\"content-section\" id=\"applications\">\n<h2>3. Principais aplica\u00e7\u00f5es<\/h2>\n<ul>\n<li>Intermedi\u00e1rio na s\u00edntese de medicamentos antituberculose<\/li>\n<li>Precursor para agentes de branqueamento fluorescentes<\/li>\n<li>Bloco de constru\u00e7\u00e3o para resinas de poliamida<\/li>\n<li>Agente de reticula\u00e7\u00e3o em qu\u00edmica de pol\u00edmeros<\/li>\n<li>Investiga\u00e7\u00e3o qu\u00edmica em s\u00edntese org\u00e2nica<\/li>\n<\/ul><\/div>\n<div class=\"content-section\" id=\"usage\">\n<h2>4. Diretrizes de utiliza\u00e7\u00e3o<\/h2>\n<h3>Procedimentos de manuseamento:<\/h3>\n<ol>\n<li>Utilizar EPI: luvas de nitrilo, \u00f3culos de prote\u00e7\u00e3o contra produtos qu\u00edmicos, bata de laborat\u00f3rio<\/li>\n<li>Trabalhar num exaustor com ventila\u00e7\u00e3o adequada<\/li>\n<li>Armazenar separadamente de oxidantes fortes<\/li>\n<li>Ligar \u00e0 terra todo o equipamento para evitar descargas est\u00e1ticas<\/li>\n<\/ol>\n<h3>Prepara\u00e7\u00e3o da rea\u00e7\u00e3o:<\/h3>\n<p>Para reac\u00e7\u00f5es de amina\u00e7\u00e3o t\u00edpicas:<\/p>\n<ol>\n<li>Dissolver em DMF (1:5 p\/v)<\/li>\n<li>Manter a temperatura de rea\u00e7\u00e3o a 60-70\u00b0C<\/li>\n<li>Utilizar a trietilamina como aceitador de prot\u00f5es<\/li>\n<li>Monitorizar o progresso da rea\u00e7\u00e3o por TLC<\/li>\n<\/ol><\/div>\n<div class=\"content-section\" id=\"case-studies\">\n<h2>5. Estudos de casos industriais<\/h2>\n<h3>Caso 1: Produ\u00e7\u00e3o interm\u00e9dia de produtos farmac\u00eauticos<\/h3>\n<p>Na s\u00edntese de precursores de etionamida:<\/p>\n<ul>\n<li>Reagiu com tioureia em mistura etanol\/\u00e1gua<\/li>\n<li>85\u00b0C refluxo durante 6 horas<\/li>\n<li>Rendimento: 78% ap\u00f3s recristaliza\u00e7\u00e3o<\/li>\n<li>Pureza alcan\u00e7ada: 99,2% (validado por RMN)<\/li>\n<\/ul>\n<h3>Caso 2: Agente de reticula\u00e7\u00e3o de pol\u00edmeros<\/h3>\n<p>Na modifica\u00e7\u00e3o de resinas epox\u00eddicas:<\/p>\n<ul>\n<li>2% w\/w adi\u00e7\u00e3o \u00e0 resina DGEBA<\/li>\n<li>Curado a 120\u00b0C durante 90 minutos<\/li>\n<li>Resultou num aumento de 35% da resist\u00eancia \u00e0 flex\u00e3o<\/li>\n<li>Estabilidade t\u00e9rmica melhorada at\u00e9 280\u00b0C<\/li>\n<\/ul><\/div>\n<div class=\"content-section\" id=\"contact\">\n<h2>6. Informa\u00e7\u00f5es de contacto<\/h2>\n<p>Para quest\u00f5es t\u00e9cnicas ou encomendas por grosso:<\/p>\n<ul>\n<li>Correio eletr\u00f3nico: <a href=\"mailto:info@vivalr.com\">info@vivalr.com<\/a><\/li>\n<li>Tel: <a href=\"tel:+8615866781826\">(86) 15866781826<\/a><\/li>\n<\/ul>\n<p>Dispon\u00edvel para exporta\u00e7\u00e3o global com documenta\u00e7\u00e3o COA\/MSDS<\/p>\n<\/p><\/div>\n<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>4-Nitrophthaldiamide CAS 13138-53-9: Technical User Guide Table of Contents 1. Product Introduction 2. Technical Specifications 3. Key Applications 4. Usage Guidelines 5. Industrial Case Studies 6. Contact Information 1. Product Introduction 4-Nitrophthaldiamide (CAS 13138-53-9) is a high-purity chemical intermediate extensively used in pharmaceutical synthesis and specialty chemical production. This aromatic compound features a nitro functional [&hellip;]<\/p>\n","protected":false},"featured_media":22036,"comment_status":"closed","ping_status":"open","template":"","meta":[],"product_brand":[],"product_cat":[15],"product_tag":[],"class_list":{"0":"post-1761","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-uncategorized","8":"first","9":"instock","10":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.4 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Factory Supply 4-Nitrophthaldiamide CAS 13138-53-9 With Low Price - Welcome to VIVALR- Your Trusted Source for Chemical Raw Materials\uff01<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vivalr.com\/pt\/product\/1761.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Factory Supply 4-Nitrophthaldiamide CAS 13138-53-9 With Low Price\" \/>\n<meta property=\"og:description\" content=\"4-Nitrophthaldiamide CAS 13138-53-9: Technical User Guide Table of Contents 1. 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