Sigma-Aldrich
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Natural Dyes



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(−)-Epicatechin BioChemika, ≥90% (sum of enantiomers, HPLC) 490-46-0290.345300pricing
3,3′-Methylene-bis(4-hydroxycoumarin) 66-76-2336.3M1390pricing
Aloin BioChemika 1415-73-2418.406088pricing
Amentoflavone ≥99.0% (HPLC) 1617-53-4538.540584pricing
Apiin BioChemika, ≥98.0% (HPLC) 26544-34-3564.517784pricing
Azure C Standard Fluka, for microbiology 531-57-7277.811667pricing
Chlorophyll a from Cyanobacteria sp., BioChemika, ≥96.0% (HPLC) 479-61-8893.544014pricing
Crocin Standard Fluka 42553-65-197717304pricing
Eriocitrin BioChemika, ≥98.0% (HPLC) 13463-28-0596.545714pricing
Flavone BioChemika, ≥99.0% (HPLC) 525-82-6222.246380pricing
Flavone BioChemika, synthetic, crystallized, ≥99.0% (HPLC) 525-82-6222.246370pricing
Formononetin BioChemika, ≥99.0% (TLC) 485-72-3268.347752pricing
Hematoporphyrin BioChemika, ≥55% (HPLC) 14459-29-1598.751240pricing
Hesperidin BioChemika, ~90% (HPLC) 520-26-3610.652040pricing
Indigo Standard Fluka, synthetic 482-89-3262.356980pricing
Isorhamnetin BioChemika, ≥95.0% (HPLC) 480-19-3316.317794pricing
Khellin for microscopy, mp ≥98.0 82-02-0260.260730pricing
Naringin BioChemika, ≥95% (HPLC) 10236-47-2580.571162pricing
Neoeriocitrin BioChemika, ~95% (HPLC) 13241-32-2596.572129pricing
Neohesperidin BioChemika, ≥98.0% (HPLC) 13241-33-3610.672141pricing
Phloridzin dihydrate BioChemika, ≥98.0% (HPLC) 7061-54-3472.479320pricing
Poncirin BioChemika, ≥96.0% (HPLC) 14941-08-3594.681467pricing
Quercetin 3-D-galactoside BioChemika, ≥97.0% (HPLC) 482-36-0464.483388pricing
Quercetin-3-D-xyloside BioChemika, ≥97.0% (HPLC) 549-32-6434.483390pricing
Rutin trihydrate BioChemika, ≥90% (HPLC) 250249-75-3664.684082pricing
Trihydroxyethylrutin BioChemika, ≥80% (HPLC) 7085-55-4742.791950pricing
o-Toluidine liquid 95-53-4107.2T1406pricing