{"id":26288,"date":"2026-09-29T15:31:29","date_gmt":"2026-09-29T07:31:29","guid":{"rendered":"https:\/\/collagensei.com\/?page_id=26288"},"modified":"2026-11-06T11:34:28","modified_gmt":"2026-11-06T03:34:28","slug":"resveratrol-98-powder","status":"publish","type":"page","link":"https:\/\/collagensei.com\/it\/specialty-ingredients\/resveratrol-98-powder\/","title":{"rendered":"Resveratrolo 98% in polvere"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"26288\" class=\"elementor elementor-26288\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-48ed36d e-con-full e-flex e-con e-parent\" data-id=\"48ed36d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6e1323 elementor-widget elementor-widget-html\" data-id=\"a6e1323\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!DOCTYPE html>\n\n<html lang=\"en\">\n<head>\n<meta charset=\"utf-8\"\/>\n<meta content=\"width=device-width, initial-scale=1.0\" name=\"viewport\"\/>\n<title>Resveratrol 98% Powder | Purity &amp; Assay Specifications<\/title>\n<meta content=\"Explore Resveratrol 98% powder with documented HPLC assay, purity and impurity controls. 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class=\"gensei-resveratrol-98-page\">\n<section class=\"g-hero\">\n<div class=\"g-wrap g-hero-grid\">\n<div>\n<p class=\"g-eyebrow\">High-Purity Resveratrol<\/p>\n<h1>Resveratrol 98% Powder \u2013 High-Purity Ingredient<\/h1>\n<p class=\"g-lead\">Resveratrol 98% is a high-purity powder for supplement formulations where assay, purity and impurity limits matter. The batch COA reports these tests separately, helping buyers assess the grade against their own specifications.<\/p>\n<div class=\"g-actions\">\n<a class=\"g-btn g-btn-primary\" href=\"#resveratrol-98-inquiry\">Request a Quote<\/a>\n<\/div>\n<\/div>\n<div class=\"g-hero-image\">\n<div class=\"g-image-placeholder\">Resveratrol 98% Powder Image<\/div>\n<img alt=\"Resveratrol 98% powder\" decoding=\"async\" loading=\"eager\" onerror=\"this.style.display='none';\" src=\"https:\/\/collagensei.com\/wp-content\/uploads\/2026\/10\/Resveratrol-Powder.webp\"\/>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"g-section\">\n<div class=\"g-wrap\">\n<div class=\"g-section-head\">\n<p class=\"g-kicker\">Product Profile<\/p>\n<h2>Resveratrol 98% at a Glance<\/h2>\n<p>A quick view of the grade and the analytical controls listed in its COA.<\/p>\n<\/div>\n<div class=\"g-facts\">\n<div class=\"g-fact\">\n<span>Product Grade<\/span>\n<strong>Resveratrol 98%<\/strong>\n<\/div>\n<div class=\"g-fact\">\n<span>CAS No.<\/span>\n<strong>501-36-0<\/strong>\n<\/div>\n<div class=\"g-fact\">\n<span>Physical Form<\/span>\n<strong>Powder<\/strong>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"g-section g-section-soft\">\n<div class=\"g-wrap\">\n<div class=\"g-section-head\">\n<p class=\"g-kicker\">High-Purity Profile<\/p>\n<h2>High-Purity Resveratrol: What the Tests Cover<\/h2>\n<p>This grade is assessed by separate HPLC assay and purity tests, alongside controls for emodin, cis-resveratrol and other related substances.<\/p>\n<\/div>\n<div class=\"g-story-grid\">\n<article class=\"g-story-card\">\n<h3>Purity Profile<\/h3>\n<p>Compare the documented batch results with your acceptance criteria, and request the current lot COA before ordering.<\/p>\n<\/article>\n<article class=\"g-story-card\">\n<h3>Starting Material<\/h3>\n<p>The starting material is listed as glucose (yeast), with corn as its source. The COA does not identify the manufacturing process.<\/p>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"g-section g-section-soft\" id=\"resveratrol-98-specification\">\n<div class=\"g-wrap\">\n<div class=\"g-section-head\">\n<p class=\"g-kicker\">Product Specification<\/p>\n<h2>Resveratrol 98% Specification<\/h2>\n<p>Specifications and measured results for the documented batch.<\/p>\n<\/div>\n<div class=\"g-table-wrap\">\n<table>\n<thead>\n<tr>\n<th>Test Item<\/th>\n<th>Method<\/th>\n<th>Specification<\/th>\n<th>Result<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"g-group\">\n<td colspan=\"4\">Assay &amp; Identity<\/td>\n<\/tr>\n<tr>\n<td>Assay<\/td>\n<td>HPLC (CP2020)<\/td>\n<td>99.0\u2013101.5% (Dried Basis)<\/td>\n<td class=\"g-result\">99.79%<\/td>\n<\/tr>\n<tr>\n<td>Purity<\/td>\n<td>HPLC<\/td>\n<td>\u226599.0%<\/td>\n<td class=\"g-result\">99.95%<\/td>\n<\/tr>\n<tr>\n<td>Identification<\/td>\n<td>HPLC \/ IR<\/td>\n<td>Positive<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr class=\"g-group\">\n<td colspan=\"4\">Related Substances<\/td>\n<\/tr>\n<tr>\n<td>Emodin<\/td>\n<td>HPLC<\/td>\n<td>\u22640.1%<\/td>\n<td class=\"g-result\">Negative<\/td>\n<\/tr>\n<tr>\n<td>Cis-Resveratrol<\/td>\n<td>HPLC<\/td>\n<td>\u22640.1%<\/td>\n<td class=\"g-result\">Negative<\/td>\n<\/tr>\n<tr>\n<td>Single Impurity<\/td>\n<td>HPLC<\/td>\n<td>\u22640.1%<\/td>\n<td class=\"g-result\">0.04%<\/td>\n<\/tr>\n<tr>\n<td>Total Impurities<\/td>\n<td>HPLC<\/td>\n<td>\u22640.5%<\/td>\n<td class=\"g-result\">0.05%<\/td>\n<\/tr>\n<tr class=\"g-group\">\n<td colspan=\"4\">Physical Properties<\/td>\n<\/tr>\n<tr>\n<td>Appearance<\/td>\n<td>Visual<\/td>\n<td>Powder<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Color<\/td>\n<td>Visual<\/td>\n<td>Off white or yellowish<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Odor<\/td>\n<td>Organoleptic<\/td>\n<td>Characteristic<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Particle \/ Mesh Size<\/td>\n<td>Mesh Screen<\/td>\n<td>80 mesh \u226595%<\/td>\n<td class=\"g-result\">98.10%<\/td>\n<\/tr>\n<tr>\n<td>Water \/ Moisture<\/td>\n<td>CP2020 &lt;0832&gt;<\/td>\n<td>\u22640.5%<\/td>\n<td class=\"g-result\">0.12%<\/td>\n<\/tr>\n<tr>\n<td>Bulk Density, Loose<\/td>\n<td>Weighing<\/td>\n<td>0.35\u20130.50 g\/ml<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Bulk Density, Tapped<\/td>\n<td>Weighing<\/td>\n<td>0.50\u20130.74 g\/ml<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Ash<\/td>\n<td>CP2020 &lt;2302&gt;<\/td>\n<td>\u22640.5%<\/td>\n<td class=\"g-result\">0.08%<\/td>\n<\/tr>\n<tr class=\"g-group\">\n<td colspan=\"4\">Solvent &amp; Contaminant Controls<\/td>\n<\/tr>\n<tr>\n<td>DBP<\/td>\n<td>LC-MS-MS<\/td>\n<td>\u22640.3 ppm<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Residual Ethanol<\/td>\n<td>GC<\/td>\n<td>\u22641,000 ppm<\/td>\n<td class=\"g-result\">224 ppm<\/td>\n<\/tr>\n<tr>\n<td>Arsenic<\/td>\n<td>ICP-MS<\/td>\n<td>\u22642.0 ppm<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Cadmium<\/td>\n<td>ICP-MS<\/td>\n<td>\u22641.0 ppm<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Lead<\/td>\n<td>ICP-MS<\/td>\n<td>\u22640.5 ppm<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Mercury<\/td>\n<td>ICP-MS<\/td>\n<td>\u22640.1 ppm<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Heavy Metals<\/td>\n<td>CP2020 &lt;0821&gt;<\/td>\n<td>\u226410 ppm<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr class=\"g-group\">\n<td colspan=\"4\">Microbiological Testing<\/td>\n<\/tr>\n<tr>\n<td>Coliforms<\/td>\n<td>GB 4789.3-2016<\/td>\n<td>\u22640.92 MPN\/g<\/td>\n<td class=\"g-result\">&lt;0.3 MPN\/g<\/td>\n<\/tr>\n<tr>\n<td>E. coli<\/td>\n<td>CP2020 &lt;1106&gt;<\/td>\n<td>Negative \/10g<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Staphylococcus aureus<\/td>\n<td>CP2020 &lt;1106&gt;<\/td>\n<td>Negative \/10g<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Salmonella<\/td>\n<td>CP2020 &lt;1106&gt;<\/td>\n<td>Negative \/10g<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Total Plate Count<\/td>\n<td>CP2020 &lt;1105&gt;<\/td>\n<td>\u22641,000 cfu\/g<\/td>\n<td class=\"g-result\">&lt;1 cfu\/g<\/td>\n<\/tr>\n<tr>\n<td>Yeast &amp; Mold<\/td>\n<td>CP2020 &lt;1105&gt;<\/td>\n<td>\u2264100 cfu\/g<\/td>\n<td class=\"g-result\">&lt;1 cfu\/g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"g-section\">\n<div class=\"g-wrap\">\n<div class=\"g-section-head\">\n<p class=\"g-kicker\">Formulation<\/p>\n<h2>Formulating with Resveratrol 98%<\/h2>\n<p>The solubility profile and powder properties should be checked against the intended formula and production process.<\/p>\n<\/div>\n<div class=\"g-formulation\">\n<div class=\"g-formulation-main\">\n<h3>Powder &amp; Solubility<\/h3>\n<p>The COA lists the powder as insoluble in water and soluble in ethanol. Water-based formulas need an appropriate dispersion strategy.<\/p>\n<div class=\"g-formulation-list\">\n<div class=\"g-formulation-item\">\n<strong>Capsules &amp; Tablets<\/strong>\n<span>Evaluate fill weight, flow and compatibility with the intended excipients.<\/span>\n<\/div>\n<div class=\"g-formulation-item\">\n<strong>Dry Powder Products<\/strong>\n<span>Test blend uniformity and handling in the intended production process.<\/span>\n<\/div>\n<div class=\"g-formulation-item\">\n<strong>Sachets &amp; Stick Packs<\/strong>\n<span>Confirm mixing and filling performance at the intended dose.<\/span>\n<\/div>\n<div class=\"g-formulation-item\">\n<strong>Gummies &amp; Chewables<\/strong>\n<span>Assess sensory effects in the finished chewable formulation.<\/span>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"g-formulation-side\">\n<h3>Working with the Supplied Grade<\/h3>\n<p>No carrier or excipient is listed in the COA. Verify the selected batch and trial the powder with your intended excipient system.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"g-section g-section-soft\">\n<div class=\"g-wrap\">\n<div class=\"g-storage\">\n<article class=\"g-storage-card\">\n<p class=\"g-kicker\">Storage<\/p>\n<h3>Keep Cool, Dry &amp; Protected<\/h3>\n<ul class=\"g-storage-list\">\n<li>Keep in a sealed container.<\/li>\n<li>Store under 25\u00b0C.<\/li>\n<li>Keep away from direct sunlight and moisture.<\/li>\n<\/ul>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"g-inquiry-section\" id=\"resveratrol-98-inquiry\">\n<div class=\"g-wrap g-inquiry-grid\">\n<div class=\"g-inquiry-copy\">\n<div class=\"g-inquiry-pill\">Resveratrol 98% Ingredient Inquiry<\/div>\n<h2>Request a Quote for Resveratrol 98%<\/h2>\n<p>Share your purchase quantity, destination and any assay or impurity limits required for your project. We can use these details to discuss the appropriate batch documents and quotation.<\/p>\n<div class=\"g-inquiry-context\"><div class=\"g-inquiry-context-item\"><strong>Order Quantity<\/strong><span>Tell us the volume needed for your high-purity resveratrol order.<\/span><\/div><div class=\"g-inquiry-context-item\"><strong>Formulation Format<\/strong><span>Share whether you are developing capsules, tablets or another format.<\/span><\/div><div class=\"g-inquiry-context-item\"><strong>Purity &amp; Testing<\/strong><span>Specify any assay, related-substance or batch documentation requirements.<\/span><\/div><div class=\"g-inquiry-context-item\"><strong>Destination &amp; Timing<\/strong><span>Let us know the shipping market and when you need the material.<\/span><\/div><\/div>\n<\/div>\n<div class=\"g-form-card\">\n<h3>Send Your Inquiry<\/h3>\n        \n<div class=\"wpcf7 no-js\" id=\"wpcf7-f74-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"74\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/it\/wp-json\/wp\/v2\/pages\/26288#wpcf7-f74-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"74\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f74-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"stay-touch\">\n\t<ul>\n\t\t<li>\n\t\t\t<p><label> Name: <span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span><\/label>\n\t\t\t<\/p>\n\t\t<\/li>\n\t\t<li>\n\t\t\t<p><label> Company Name: <span class=\"wpcf7-form-control-wrap\" data-name=\"your-company\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-company\" \/><\/span><\/label>\n\t\t\t<\/p>\n\t\t<\/li>\n\t\t<li>\n\t\t\t<p><label> Email: <span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-email\" \/><\/span><\/label>\n\t\t\t<\/p>\n\t\t<\/li>\n\t\t<li>\n\t\t\t<p><label> Tel: <span class=\"wpcf7-form-control-wrap\" data-name=\"your-tel\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" value=\"\" type=\"text\" name=\"your-tel\" \/><\/span><\/label>\n\t\t\t<\/p>\n\t\t<\/li>\n\t\t<li>\n\t\t\t<p><label> Message: <span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" name=\"your-message\"><\/textarea><\/span><\/label>\n\t\t\t<\/p>\n\t\t<\/li>\n\t\t<li style=\"text-align:center\">\n\t\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"SEND\" \/>\n\t\t\t<\/p>\n\t\t<\/li>\n\t<\/ul>\n<\/div><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n\n      <\/div>\n<\/div>\n<\/section>\n<\/div>\n<script crossorigin=\"anonymous\" data-cf-beacon='{\"version\":\"2024.11.0\",\"token\":\"7939e04a4baf43c8b86a560f74aac60e\",\"spa\":2}' integrity=\"sha512-iIg7k2xntmwu6\/uSb5tpc\/hySgZc4eoL31yB29W6tJFo2akwjPWcEqnCEdJvGexCL0KEQwVYv5BlowfhVz26hg==\" src=\"https:\/\/static.cloudflareinsights.com\/beacon.min.js\/v31edd6df95cf4e85bb4c19e7a9bdbcba1788362987495\" type=\"module\"><\/script>\n<\/body>\n<\/html>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Resveratrol 98% Powder | Purity &amp; Assay Specifications High-Purity Resveratrol Resveratrol 98% Powder \u2013 High-Purity Ingredient Resveratrol 98% is a [&hellip;]<\/p>\n","protected":false},"author":169,"featured_media":0,"parent":4827,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-26288","page","type-page","status-publish","hentry"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Yafang. 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