Indicator?Indicator grade — characterized dye giving a defined color change at a known transition. Use to signal pH or titration endpoints visually.ACS?ACS grade — meets American Chemical Society specifications, the analytical benchmark in the US. Use for analytical and QC work needing ACS-defined purity.Ph.Eur.?European Pharmacopoeia grade — conforms to Ph.Eur. monographs across EU member states. Use for pharmaceutical work needing European compendial compliance.
ACS?ACS grade — meets American Chemical Society specifications, the analytical benchmark in the US. Use for analytical and QC work needing ACS-defined purity.
Ph.Eur.?European Pharmacopoeia grade — conforms to Ph.Eur. monographs across EU member states. Use for pharmaceutical work needing European compendial compliance.ACS?ACS grade — meets American Chemical Society specifications, the analytical benchmark in the US. Use for analytical and QC work needing ACS-defined purity.Indicator?Indicator grade — characterized dye giving a defined color change at a known transition. Use to signal pH or titration endpoints visually.
Carrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.Azide Free?Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory.PBS Only?PBS-only formulation — supplied in phosphate-buffered saline with no other additives. Use when you need a clean PBS buffer free of stabilizers/carriers.
Carrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.Azide Free?Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory.PBS Only?PBS-only formulation — supplied in phosphate-buffered saline with no other additives. Use when you need a clean PBS buffer free of stabilizers/carriers.
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