{"product_id":"isophthalic-acid-roti-star-crm-1-g-21km","title":"Isophthalic acid, ROTI®Star CRM, 1 g","description":"\u003cp\u003eIsophthalic acid is a ROTI®Star CRM with CAS number 121-91-5, empirical formula C₈H₆O₄ and molar mass 166,13 g\/mol. Packed as 1 g in glass, this reference substance for gas chromatography (GC) has a density of 1,53 g\/cm³. It is intended for chromatography laboratories that require isophthalic acid as a GC reference substance. The 1 g glass pack is the unit quantity for this ROTI®Star CRM grade. Within analytical workflows, isophthalic acid from manufacturer Carl ROTH is used where a ROTI®Star CRM of this identity is specified. Chemical identification rests on CAS 121-91-5, formula C₈H₆O₄, molar mass 166,13 g\/mol and density 1,53 g\/cm³, together with the 1 g glass presentation. Chromatographers working in gas chromatography can select this material as a reference substance without changing the stated composition or pack. Isophthalic acid as ROTI®Star CRM therefore remains a 1 g glass-packed GC reference substance defined by its CAS number, empirical formula and molar mass, supporting consistent ordering and laboratory use in chromatography.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCAS number: 121-91-5\u003c\/li\u003e\n\u003cli\u003ePack size: 1 g glass\u003c\/li\u003e\n\u003cli\u003eEG nr.: 204-506-4\u003c\/li\u003e\n\u003cli\u003eEmpirical formula: C₈H₆O₄\u003c\/li\u003e\n\u003cli\u003eMolar mass: 166,13 g\/mol\u003c\/li\u003e\n\u003cli\u003eStorage temperature: +2 to +8 °C\u003c\/li\u003e\n\u003cli\u003eUNSPSC: 41116107\u003c\/li\u003e\n\u003cli\u003eSafety Data Sheet: \u003ca class=\"sds-link\" href=\"https:\/\/www.carlroth.com\/medias\/SDB-21KM-DE-EN.pdf?context=bWFzdGVyfHNlY3VyaXR5RGF0YXNoZWV0c3wyNDc4MzJ8YXBwbGljYXRpb24vcGRmfGFESm1MMmhqTVM4NU1qa3lOREU0TURnNE9Ua3dMMU5FUWw4eU1VdE5YMFJGWDBWT0xuQmtaZ3wxOTNmYjg3YTc5OGQ2NWRlODdmNTA1NTVmMDcyYzRjMGQwNjM3MGU1MmJiOTI1YzM2MWEyOGJhZWRmZDE4N2Qy\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"SDS PDF\" aria-label=\"SDS PDF\"\u003e\u003cimg class=\"sds-icon\" src=\"https:\/\/img.icons8.com\/color\/48\/pdf.png\" alt=\"PDF\" width=\"18\" height=\"18\" style=\"width:18px;height:18px;max-width:18px;margin:0;padding:0;display:inline-block;vertical-align:middle;border:0;\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Luminix Health","offers":[{"title":"1 g","offer_id":58656423903564,"sku":"21KM.1","price":80.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/21KM-1.jpg?v=1788330899","url":"https:\/\/www.luminixhealth.com\/en-be\/products\/isophthalic-acid-roti-star-crm-1-g-21km","provider":"Luminix Health","version":"1.0","type":"link"}