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Purpurin (C.I.58205)
(19495136 | 81-54-9)
CAS: | 81-54-9 |
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Molecular Formula: | C14H8O5 |
Molecular Weight: | 256.21 |
Availablility: | In Stock |
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Downloads: | | |
19495136-25g | 25g | £121.60 | |
Bulk Order |
19495136-25g | 25g | €170.30 | |
Bulk Order |
19495136-25g | 25g | $182.40 | |
Bulk Order |
Safety Data Sheet
Specification
Product Detail
Product Code | 19495136 | ||||
Product Name | Purpurin (C.I.58205) | ||||
Categories | Stains & Indicators | ||||
CAS | 81-54-9 | ||||
Molecular Formula | C14H8O5 | ||||
Molecular Weight | 256.21 | ||||
Storage Details | Ambient | ||||
Harmonised Tariff Code | 29146980 |
Product Specification
Melting Point | 253-256°C | ||||
pH | 3.8-4.5 (50mg in 100m/l, 50/50 THF & H2O) | ||||
Solubility | (1mg/ml NH4OH) Red to very dark red to purple solution. | ||||
Assay (HPLC) | ≥94% | ||||
Appearance | Dark red to orange brown to brown powder | ||||
Impurity HPLC | ≤3% Alizarin | ||||
Loss on drying ( 150°C 1 hrs ) | ≤1.0% | ||||
For research use only, not for human use | research use only, not for human use | ||||
Spectrophotometric Assay Conc. 0.01g/l in methanol Extinction Co-efficient | E (237nm +/- 3nm) = 17000, E (257nm +/- 3nm) = 17000, E (514nm +/- 3nm) = 7000 | ||||
Manganese (Mn) ICP | ≤500ppm | ||||
Sulphur (S) ICP | ≤1500ppm |
Safety Information
Pictograms |
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Signal word | warning | ||||
Hazard statements |
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Precautionary statements |
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