ChemicalBook >?? ???? >?????
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- >2000C (dec)
- ?? ?
- 640.55°C (rough estimate)
- ??
- 1.2293 (rough estimate)
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- 1.6000 (estimate)
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- -20°C Freezer
- ???
- DMSO(?? ???), ???(?? ???)
- ?? ?? (pKa)
- 4.46±0.10(Predicted)
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Dark Green Crystalline Solid??
Precursor of Bilirubin. Formed in the body from hemoglobin??
ChEBI: A linear tetrapyrrole produced in the reticuloendothelial system by the first step of heme degradation, catalysed by heme oxygenase.Purification Methods
This is the precursor of bilirubin (above) and forms dark green plates or prisms, with a violet reflection, from MeOH. The dimethyl ester, when crystallised from MeOH has m 215o(209o), and when crystallised from CHCl3/Pet ether gives blue-green crystals with m 202o. [Gray et al. J Chem Soc 2264 1961, Sheldrick J Chem Soc, Perkin Trans 2 1457 1976, Beilstein 26 III/V 3272.]????? ?? ?? ? ???
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