CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Hematoxylin appears as white to yellowish crystals that redden on exposure to light. (NTP, 1992) |
|---|---|
| Melting Point | 212 to 248 °F (NTP, 1992) |
| Solubility | Slightly soluble in cold; soluble in hot (NTP, 1992) |
| Stability/Shelf Life | TURNS RED ON EXPOSURE TO LIGHT; ITS SOLN DARKEN ON STANDING /TRIHYDRATE/ |
| Optical Rotation | SPECIFIC OPTICAL ROTATION: +11 (WATER, 3.7%); MAX ABSORPTION (0.1 N KOH): 499 NM, 534.4 NM, 565 NM, 615.5 NM |
| Other Experimental Properties | WHITE TO YELLOWISH CRYSTALS; MP: 100-120 °C, ALSO STATED AS 140 °C; SLIGHTLY SOL IN COLD WATER, ETHER; SOL IN ALKALI HYDROXIDES, GLYCEROL, HOT WATER, HOT ALC, ALSO IN BORAX; SOL IN ALKALI HYDROXIDES, GLYCEROL /TRIHYDRATE/ |
| Chemical Classes | Dyes -> Other Dyes |
COMPUTED DESCRIPTORS
| Molecular Weight | 302.28 g/mol |
|---|---|
| XLogP3 | 1.2 |
| Hydrogen Bond Donor Count | 5 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 0 |
| Exact Mass | 302.07903816 g/mol |
| Monoisotopic Mass | 302.07903816 g/mol |
| Topological Polar Surface Area | 110 Ų |
| Heavy Atom Count | 22 |
| Formal Charge | 0 |
| Complexity | 444 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 2 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Hematoxylin appears as white to yellowish crystals that redden on exposure to light. (NTP, 1992)