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hematein
Sign in to saveAlso known as Hematine, Natural black 1, Haematine, C.I. 75290
Hematein (US spelling) or haematein is an oxidized derivative of haematoxylin, used in staining. Haematein should not be confused with haematin, which is a brown to black iron-containing pigment formed by decomposition of haemoglobin. In the Colour Index (but nowhere else), haematein is called haematine.
Chemical data
- Formula
- C16H12O6
- Molecular weight
- 300.26 g/mol
- IUPAC name
- 3,4,6a,10-tetrahydroxy-6,7-dihydroindeno[2,1-c]chromen-9-one
- SMILES
- C1C2=CC(=O)C(=CC2=C3C1(COC4=C3C=CC(=C4O)O)O)O
- InChIKey
- HLUCICHZHWJHLL-UHFFFAOYSA-N
- XLogP
- -0.2
- Polar surface area
- 107 Ų
- H-bond donors
- 4
- H-bond acceptors
- 6
- Formal charge
- 0
via PubChem
Drug data · ChEMBL
- Molecule type
- Small molecule
via ChEMBL · EBI
Wikidata facts
- Subclass of
- chemical compound
- Mass
- 300.063
Show 4 more facts
- canonical SMILES
- C1C2=CC(=O)C(=CC2=C3C1(COC4=C3C=CC(=C4O)O)O)O
- chemical formula
- C₁₆H₁₂O₆
- Commons category
- Hematein
- MCN code
- 3203.00.11
Sources (2)
via Wikidata · CC0
~3 min read
Encyclopedic overview
3 sectionsContents
- Properties
- Applications
- References
Hematein (US spelling) or haematein is an oxidized derivative of haematoxylin, used in staining. Haematein should not be confused with haematin, which is a brown to black iron-containing pigment formed by decomposition of haemoglobin. In the Colour Index (but nowhere else), haematein is called haematine.
==Properties== Hematein exhibits indicator-like properties, being blue and less soluble in aqueous alkaline conditions, and red and more soluble in alcoholic acidic conditions. Dissolved haematein slowly reacts with atmospheric oxygen, yielding products that have not found applications.
Excerpted from Wikipedia’s “hematein” article, available under the CC BY-SA 4.0 licence.