Analytical and HPLC grade solvents and reagents were used for chemical analyses. Acetonitrile (99.9%) and methanol (99.9%)as well as the references as quercetin, quercetin-3-O-glucoside, luteolin-7-O-glucoside, luteolin-7-O-rutinoside, rutin trihydrate, apigenin-7-O-glucoside, santin, 3-O-caffeoylquinic acid, 5-O-caffeoylquinic acid, 4-O-caffeoylquinic acid, 1,3-O-dicaffeoylquinic acid, 3,4-O-dicaffeoylquinic acid, 3,5-O-dicaffeoylquinic acid, 1,5-O-dicaffeoylquinic acid, and 4,5-O-dicaffeoylquinic acid, were obtained from Sigma-Aldrich (Steinheim, Germany); trifluoroacetic acid (≥99%) and apigenin were supplied from Fluka Chemika (Buchs, Switzerland). The purified deionized water (18.2 mΩ/cm) was produced using the Millipore Simpak1 Synergy 185 ultra-pure (Bedford, MA, USA) water system.
4 5 o dicaffeoylquinic acid
Manufactured by Merck Group
Sourced in Germany, United States
4,5-O-dicaffeoylquinic acid is a naturally occurring compound found in various plant species. It is a quinic acid ester with two caffeoyl moieties attached at the 4 and 5 positions. This compound serves as a useful reference standard for analytical and research applications.
Automatically generated - may contain errors
Lab products found in correlation
Quercetin, by Merck Group (2 mentions)
Methanol, by Merck Group (1 mentions)
Acetonitrile, by Merck Group (1 mentions)
Simpak1 synergy 185, by Merck Group (1 mentions)
1 5 o dicaffeoylquinic acid, by Merck Group (1 mentions)
Rutin trihydrate, by Merck Group (1 mentions)
Apigenin 7 o glucoside, by Merck Group (1 mentions)
Quercetin 3 o glucoside, by Merck Group (1 mentions)
Santin, by Merck Group (1 mentions)
3 o caffeoylquinic acid, by Merck Group (1 mentions)
5 o caffeoylquinic acid, by Merck Group (1 mentions)
4 o caffeoylquinic acid, by Merck Group (1 mentions)
Folin ciocalteu phenol reagent, by Merck Group (1 mentions)
Trolox, by Merck Group (1 mentions)
Hydrochloric acid (hcl), by RCI Labscan (1 mentions)
Methanol, by RCI Labscan (1 mentions)
Phosphoric acid, by RCI Labscan (1 mentions)
Ethanol, by RCI Labscan (1 mentions)
Gallic acid, by Merck Group (1 mentions)
2 protocols using 4 5 o dicaffeoylquinic acid
1
HPLC Analysis of Polyphenol Compounds
2
Phytochemical Screening of Botanical Extracts
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The chemicals used were analytical reagent grade: ABTZ (ABTZ, Sigma-Aldrich USA), DPPH (DPPH, Sigma-Aldrich USA), Trolox (Sigma-Aldrich USA), Folin-Ciocalteu phenol reagent (Sigma-Aldrich USA), Sodium carbonate (Na 2 CO 3 , Univar Ajax Finechem New Zealand) Aluminium chloride (AlCl 3 , Univar Ajax Finechem New Zealand), Potassium acetate (CH 3 COOK; Univar Ajax Finechem New Zealand), Hydrochloric acid (Lab Scan Thailand), Ethanol (Lab Scan Thailand). HPLC grade: 4,5-O-dicaffeoylquinic acid (Sigma-Aldrich USA), Quercetin (Sigma-Aldrich USA), Gallic acid (Sigma-Aldrich USA), MEthanol (Lab Scan Thailand), Phosphoric acid (Lab Scan Thailand), and Cosmetic grade: Tween 80 and propylene glycol (Namsiang Thailand).
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