CAS Number
77-09-8
Formula
C20H14O4
Weight
M: 318,33 EC: 201-004-7 NC: 2932 29 10
Signal Word: Danger
8 H350-H361f-H341
| Minimum assay (HPLC) | 99,0 % |
| Identity | IR p/t. |
| Melting range | 258-263°C |
| T.L.C | p/t. |
| MAX. IMPURITIES | |
| pH transition interval: | |
| colourless | 8,0 |
| red-violet | 10,0 |
| Transition interval acc. to ACS | p/t. |
| Insoluble matter in C2H5OH | p/t. |
| Loss on drying at 105°C | 1,0 % |
| Residue on ignition (as SO4) | 0,1 % |
| As | 0,0002 % |
| Cu | 0,0005 % |
| Fe | 0,005 % |
| Ni | 0,0005 % |
| Pb | 0,0005 % |
| Minimum assay (HPLC) | 99,0 % |
| Identity | IR p/t. |
| Melting range | 258-263°C |
| T.L.C | p/t. |
| MAX. IMPURITIES | |
| colourless | 8,0 |
| red-violet | 10,0 |
| Transition interval acc. to ACS | p/t. |
| Insoluble matter in C2H5OH | p/t. |
| Loss on drying at 105°C | 1,0 % |
| Residue on ignition (as SO4) | 0,1 % |
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