{"id":7582,"date":"2024-11-11T06:01:30","date_gmt":"2024-11-11T06:01:30","guid":{"rendered":"https:\/\/longchangchemical.com\/?post_type=product&#038;p=7582"},"modified":"2025-12-16T02:27:56","modified_gmt":"2025-12-16T02:27:56","slug":"photoinitiator-eha-cas-21245-02-3","status":"publish","type":"product","link":"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-eha-cas-21245-02-3\/","title":{"rendered":"CHLUMINIT\u00ae EHA \/ Fotoiniciador EHA \/ Omnirad EHA \/ Speedcure EHA CAS 21245-02-3"},"content":{"rendered":"<h1>Fotoiniciador EHA \/ Omnirad EHA \/ Speedcure EHA CAS 21245-02-3<\/h1>\n<p><strong><b>Nome Qu\u00edmico<\/b><\/strong>:4-Dimetilaminobenzoato de 2-etil-hexila<\/p>\n<p><strong><b>Sin\u00f4nimo: <\/b><\/strong> SpeedCure EHA; EHA; Omnirad EHA; Escalol 507; Eusolex 6007; Octyl dimethyl PABA; Padimate-O; EHDBA<\/p>\n<p><strong><b>N\u00famero CAS<\/b><\/strong>:21245-02-3<\/p>\n<p><strong><b>F\u00f3rmula molecular:<\/b><\/strong><strong><b>\u00a0<\/b><\/strong> C17H27NO2<\/p>\n<p><strong><b>\u00a0<\/b><\/strong><strong><b>Especifica\u00e7\u00e3o<\/b><\/strong><strong><b>:<\/b><\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td colspan=\"2\" width=\"287\">Apar\u00eancia<\/td>\n<td width=\"332\">L\u00edquido ligeiramente amarelo<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\" width=\"287\">Pureza<\/td>\n<td width=\"332\">\u226599%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\" width=\"287\">Vol\u00e1teis<\/td>\n<td width=\"332\">\u22640,3%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\" width=\"287\">Ponto de fus\u00e3o<\/td>\n<td width=\"332\">48 - 54\u2103<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\" width=\"137\">&nbsp;<\/p>\n<p>Transmiss\u00e3o<\/td>\n<td width=\"150\">425nm<\/td>\n<td width=\"332\">\u226594%<\/td>\n<\/tr>\n<tr>\n<td width=\"150\">500nm<\/td>\n<td width=\"332\">\u226597.5%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\" width=\"287\">Clareza da solu\u00e7\u00e3o<\/td>\n<td width=\"332\">Limpo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><b>Pacote<\/b><\/strong><strong><b>:<\/b><\/strong><\/p>\n<p>25 kg\/tambor<\/p>\n<p><strong><b>Uso<\/b><\/strong><strong><b>:<\/b><\/strong><\/p>\n<p>Desde os revestimentos de piso cur\u00e1veis por UV, que s\u00e3o amplamente usados no setor de constru\u00e7\u00e3o, at\u00e9 a camada de revestimentos pl\u00e1sticos fortes e bonitos em produtos pl\u00e1sticos, o fotoiniciador EHA desempenha um papel insubstitu\u00edvel. Tomemos como exemplo um conhecido pr\u00e9dio comercial. O piso est\u00e1 sujeito a pisadas fortes e atrito todos os dias. No entanto, o revestimento de piso cur\u00e1vel por UV com o fotoiniciador EHA adicionado n\u00e3o s\u00f3 melhorou muito a resist\u00eancia ao desgaste, como tamb\u00e9m permanece brilhante e luminoso a longo prazo. Isso se deve \u00e0 densa estrutura de cura formada pelo revestimento sob irradia\u00e7\u00e3o UV.<\/p>\n<p>No setor de comunica\u00e7\u00f5es, os revestimentos de fibra \u00f3ptica s\u00e3o essenciais para garantir a estabilidade das fibras \u00f3pticas e a qualidade da transmiss\u00e3o do sinal. O uso do fotoiniciador EHA em revestimentos de fibra \u00f3ptica \u00e9 como colocar uma camada resistente de \"armadura\" para as fibras \u00f3pticas. De acordo com dados de pesquisas relevantes, os revestimentos de fibra \u00f3ptica com adi\u00e7\u00e3o de fotoiniciador EHA podem prolongar a vida \u00fatil das fibras \u00f3pticas em ambientes adversos em cerca de 30%, porque o fotoiniciador EHA promove a forma\u00e7\u00e3o de liga\u00e7\u00f5es qu\u00edmicas especiais durante o processo de cura do revestimento, aumentando a capacidade do revestimento de proteger a fibra \u00f3ptica.<\/p>\n<p>Para o setor de eletr\u00f4nicos, o uso do fotoiniciador EHA em tintas resistentes \u00e0 solda de cura por luz e em tintas de marca\u00e7\u00e3o de cura por luz para placas de circuito \u00e9 de particular import\u00e2ncia. Sabemos que as placas de circuito em produtos eletr\u00f4nicos s\u00e3o como o sistema nervoso humano, e sua estabilidade afeta diretamente o desempenho do produto. As tintas de solda que cont\u00eam o fotoiniciador EHA podem proteger com precis\u00e3o as partes da placa de circuito que n\u00e3o precisam ser soldadas ap\u00f3s a cura com luz UV, evitando problemas como curtos-circuitos. Em um grande fabricante de eletr\u00f4nicos, por exemplo, a taxa de produtos defeituosos devido a falhas na placa de circuito foi reduzida em cerca de 25% gra\u00e7as ao uso dessa avan\u00e7ada tinta de solda fotopolimeriz\u00e1vel. Enquanto isso, o fotoiniciador EHA em tintas de marca\u00e7\u00e3o fotopolimeriz\u00e1veis garante marca\u00e7\u00f5es claras e dur\u00e1veis, facilitando os processos subsequentes de produ\u00e7\u00e3o, teste e manuten\u00e7\u00e3o.<\/p>\n<p>Al\u00e9m disso, o fotoiniciador EHA tamb\u00e9m desempenha um papel importante na fabrica\u00e7\u00e3o de discos \u00f3pticos. O revestimento da superf\u00edcie do disco precisa ter alta dureza, alta transpar\u00eancia e boa resist\u00eancia ao desgaste. O fotoiniciador EHA faz com que o revestimento do disco atenda a esses requisitos rigorosos ap\u00f3s a cura por UV, garantindo a estabilidade dos dados armazenados no disco e a precis\u00e3o da leitura.<\/p>\n<p>Vale a pena mencionar que, com o desenvolvimento cont\u00ednuo da tecnologia, podemos supor que, se a estrutura molecular do fotoiniciador EHA for ainda mais otimizada, poderemos desenvolver novos revestimentos e tintas adequados para ambientes mais especiais? Por exemplo, no setor aeroespacial, diante de condi\u00e7\u00f5es extremas de temperatura, radia\u00e7\u00e3o e press\u00e3o, esse fotoiniciador otimizado pode ajudar a desenvolver revestimentos protetores de alto desempenho para oferecer melhor prote\u00e7\u00e3o aos equipamentos aeroespaciais, o que, sem d\u00favida, ser\u00e1 outro grande avan\u00e7o no campo da ci\u00eancia dos materiais. Ao mesmo tempo, tamb\u00e9m estamos constantemente explorando novos materiais e resultados de pesquisa para explorar ainda mais o potencial do fotoiniciador EHA e fornecer um forte suporte para o desenvolvimento de mais campos.<\/p>\n<p><strong><b>Armazenamento:<\/b><\/strong><\/p>\n<p>Mantido em um dep\u00f3sito seco e limpo, com boa ventila\u00e7\u00e3o.<\/p>\n<p>Evite a exposi\u00e7\u00e3o \u00e0 luz e ao aquecimento.<\/p>\n<p>Proteger o produto contra vazamentos, chuva e insola\u00e7\u00e3o durante o transporte.<\/p>\n<h2><strong><b>Entre em contato conosco agora!<\/b><\/strong><\/h2>\n<h4><strong><b>Se precisar do Price, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato dentro de 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail <span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a><\/span>\u00a0durante o hor\u00e1rio comercial (das 8h30 \u00e0s 18h UTC+8 de segunda a s\u00e1bado) ou use o bate-papo ao vivo do site para obter uma resposta imediata.<\/b><\/strong><\/h4>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 435.77pt;\" border=\"0\" width=\"581\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt; width: 215.25pt;\" width=\"287\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">Fotoiniciador TPO<\/span><\/a><\/td>\n<td style=\"width: 220.50pt;\" width=\"294\">CAS 75980-60-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/cas-270586-78-2\/\"><span style=\"color: #00ccff;\">Fotoiniciador TMO<\/span><\/a><\/td>\n<td>CAS 270586-78-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-pd-01-cas-579-07-7\/\"><span style=\"color: #00ccff;\">Fotoiniciador PD-01<\/span><\/a><\/td>\n<td>CAS 579-07-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador PBZ<\/span><\/a><\/td>\n<td>CAS 2128-93-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-oxe-02-cas-478556-66-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador OXE-02<\/span><\/a><\/td>\n<td>CAS 478556-66-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-ombb\/\"><span style=\"color: #00ccff;\">Fotoiniciador OMBB<\/span><\/a><\/td>\n<td>CAS 606-28-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mpbz-6012\/\"><span style=\"color: #00ccff;\">Fotoiniciador MPBZ (6012)<\/span><\/a><\/td>\n<td>CAS 86428-83-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">Fotoiniciador MBP<\/span><\/a><\/td>\n<td>CAS 134-84-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mbf-cas-15206-55-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador MBF<\/span><\/a><\/td>\n<td>CAS 15206-55-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-lap-cas-85073-19-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador LAP<\/span><\/a><\/td>\n<td>CAS 85073-19-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">Fotoiniciador ITX<\/span><\/a><\/td>\n<td>CAS 5495-84-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-emk\/\"><span style=\"color: #00ccff;\">Fotoiniciador EMK<\/span><\/a><\/td>\n<td>CAS 90-93-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-eha-cas-21245-02-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador EHA<\/span><\/a><\/td>\n<td>CAS 21245-02-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-edb-cas-10287-53-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador EDB<\/span><\/a><\/td>\n<td>CAS 10287-53-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">Fotoiniciador DETX<\/span><\/a><\/td>\n<td>CAS 82799-44-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cq\/\"><span style=\"color: #00ccff;\">Fotoiniciador CQ \/ canforoquinona<\/span><\/a><\/td>\n<td>CAS 10373-78-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cbp-cas-134-85-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador CBP<\/span><\/a><\/td>\n<td>CAS 134-85-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">Fotoiniciador BP \/ Benzofenona<\/span><\/a><\/td>\n<td>CAS 119-61-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-bms\/\"><span style=\"color: #00ccff;\">Fotoiniciador BMS<\/span><\/a><\/td>\n<td>CAS 83846-85-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-938\/\"><span style=\"color: #00ccff;\">Fotoiniciador 938<\/span><\/a><\/td>\n<td>CAS 61358-25-6<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-937-cas-71786-70-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 937<\/span><\/a><\/td>\n<td>CAS 71786-70-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-dw\/\"><span style=\"color: #00ccff;\">Fotoiniciador 819 DW<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">Fotoiniciador 819<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-784-cas-125051-32-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador 784<\/span><\/a><\/td>\n<td>CAS 125051-32-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-754-cas-211510-16-6-442536-99-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 754<\/span><\/a><\/td>\n<td>CAS 211510-16-6 442536-99-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-6993-cas-71449-78-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador 6993<\/span><\/a><\/td>\n<td>CAS 71449-78-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-6976\/\"><span style=\"color: #00ccff;\">Fotoiniciador 6976<\/span><\/a><\/td>\n<td>CAS 71449-78-0 89452-37-9 108-32-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 379<\/span><\/a><\/td>\n<td>CAS 119344-86-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">Fotoiniciador 369<\/span><\/a><\/td>\n<td>CAS 119313-12-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-160\/\">Fotoiniciador 160<\/a><\/span><\/td>\n<td>CAS 71868-15-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-1206\/\"><span style=\"color: #00ccff;\">Fotoiniciador 1206<\/span><\/a><\/td>\n<td><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/irgacure-1173-cas-7473-98-5\/\"><span style=\"color: #00ccff;\">Fotoiniciador 1173<\/span><\/a><\/td>\n<td>CAS 7473-98-5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>EHA<\/strong> \u00e9 um sinergista de amina de cura UV eficiente, usado principalmente como iniciador da rea\u00e7\u00e3o de cura UV. Por exemplo, ele \u00e9 usado como um iniciador para a cura por radia\u00e7\u00e3o em produtos como revestimentos e tintas cur\u00e1veis por UV.<\/p>","protected":false},"featured_media":8075,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[180,174],"product_tag":[],"class_list":{"0":"post-7582","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-amine-synergist","7":"product_cat-photoinitiator","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Photoinitiator - Amine Synergist EHA \/ Omnirad EHA \/ Speedcure EHA CAS 21245-02-3 manufacturer -Longchang Chemical<\/title>\n<meta name=\"description\" content=\"EHA is a photoinitiator,can can be used in UV-cured floor coatings, plastic coatings, optical fiber coatings, optical disc coatings, light-cured solder resist inks for circuit boards, light-cured marking inks,can replace 2-Ethylhexyl 4-dimethylaminobenzoate,Photoinitiator EHA; SpeedCure EHA; EHA;Omnirad EHA;Escalol 507;Eusolex 6007;Octyl dimethyl PABA;Padimate-O;EHDBA;Longchang Chemical is a professional manufacturer and supplier of photoinitiator in China.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-eha-cas-21245-02-3\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Photoinitiator - Amine Synergist EHA \/ Omnirad EHA \/ Speedcure EHA CAS 21245-02-3 manufacturer -Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"EHA is a photoinitiator,can can be used in UV-cured floor coatings, plastic coatings, optical fiber coatings, optical disc coatings, light-cured solder resist inks for circuit boards, light-cured marking inks,can replace 2-Ethylhexyl 4-dimethylaminobenzoate,Photoinitiator EHA; 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