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| NEUTRAL RED DYE |
| SPECIFICATION SHEET |
| CAS No. | 553-24-2 |    |
| C.I.No. | 50040 | |
| Chemical Formula | C15H17ClN4 | |
| Molecular Weight | 288.78 | |
| Melting Point | 290° c | |
| Dye Content | ~60% | |
| Absorption Max (EtOH 50%) | 539 - 544 nm | |
| Absorptivity(1%,1cm) | >900 (on dry basis) | |
| Transition Range | pH 6.8 - 8.0 Red - Orange |
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| Loss On Drying (110° c.) | < 8% |
Also available Neutral Red with dye content 75 % and 90 %