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GREEN LABEL "S" |  | HOMOORIENTIN | Ref . 1055 S
Batch : 10 |
| | IDENTIFICATION | | CAS Number | : | [4261-42-1] | | Chemical Family | : | Flavonoids | | Chemical name | : | Luteolin-6-C-glucoside | | Molecular formular | : | C21H20O11 | | Molecular Weight | : | 448.38 | | | | | | CERTIFICATE OF ANALYSIS | | Appearance | : | Yellow Powder | | Melting point | : | 240-242°C , dec | | Thin layer chromatography | : |
support Silicagel
solvent Ethyl acetate / MEC / Formic acid / Water (5/3/1/1 ,V/V/V/V)
detection UV | | Absorption maxima | : | 256, 270, 349 nm in methanol | | Store at room temperature in a dry and dark place. Place in a desiccator under vacuum for 48 hours before use | | | | | | HIGH PERFORMANCE LIQUID CHROMATOGRAPHY | | Column | : | Symmetry Shield RP18® (4.6 x 150 mm), particle size 3.5 µm | | Solvent | : | Water + 5% acetic acid / Methanol / Acetonitrile :(80/10/10, V/V/V) | | Flow rate | : | 1 ml/min | | Detector | : | UV visible 254nm | | Sample solvent | : | Methanol | | Auto-Scaled Chromatogram |  |
Please note our "S" code product products bear GREEN LABELS on white background, like the one shown below.
1 Indicates the date of packaging and batch number of product. Thus the indication : Lot 01062110 means batch 10 of Homoorientin (Ref. : 1055 S) was packaged on lot 06/21/2001, 2 and 3 indicate the storage conditions for our products before use. We cannot insist too strongly on the fact that you should use our products as soon as possible after purchase. We advise the user to place out HPLC chemicals in desiccator under vacuum for at least 48 hours before use.
Never store the product in solution. |  |
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