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Heme b

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Identification
Molecular formula
C34H32FeN4O4
CAS number
14875-96-8
IUPAC name
3-[18-(2-carboxyethyl)-3,8,13,17-tetramethyl-7,12-divinyl-2,3,6,7,8,11,12,13,14,17-decahydroporphyrin-21,22,23,24-tetraid-2-yl]propanoic acid;iron
State
State

Heme b is typically found as a solid at room temperature. Because it is hydrophobic, it is often handled in its crystalline form. Its solid state aids in the ease of storage and transportation without significant decomposition or degradation.

Melting point (Celsius)
180.00
Melting point (Kelvin)
453.15
Boiling point (Celsius)
400.00
Boiling point (Kelvin)
673.15
General information
Molecular weight
616.49g/mol
Molar mass
616.4870g/mol
Density
1.3400g/cm3
Appearence

Heme b is a deep red solid due to its high conjugation and iron content. It forms crystals that can exhibit a metallic sheen, particularly when in a jar or vial. In solutions, especially when dissolved in organic solvents or water with stabilizers, it imparts a characteristic red-brown color.

Comment on solubility

Solubility of 3-[18-(2-carboxyethyl)-3,8,13,17-tetramethyl-7,12-divinyl-2,3,6,7,8,11,12,13,14,17-decahydroporphyrin-21,22,23,24-tetraid-2-yl]propanoic acid;iron

The solubility of the compound C34H32FeN4O4 can be complex and is influenced by several factors:

  • Polarity: This compound features polar functional groups, which often enhances solubility in polar solvents like water.
  • Hydrophobic Character: The presence of large hydrocarbon chains may lead to reduced solubility in more polar environments.
  • pH Dependence: As it contains carboxylic acid groups, its solubility may vary significantly with pH, allowing for increased solubility at higher pH levels where deprotonation occurs.
  • Complex Formation: The iron ion can form complexes that may alter solubility properties in various solvent systems.

In practical terms, it is essential to consider the environment in which this compound is dissolved, as it may exhibit variable solubility based on the solvent and conditions used. As was noted, "The solubility of a complex compound can provide insights into its potential applications and efficacy in various fields."

Interesting facts

Interesting Facts About 3-[18-(2-carboxyethyl)-3,8,13,17-tetramethyl-7,12-divinyl-2,3,6,7,8,11,12,13,14,17-decahydroporphyrin-21,22,23,24-tetraid-2-yl]propanoic Acid; Iron

This fascinating compound, a complex of iron with a highly substituted porphyrin structure, showcases the incredible diversity found within the realm of metalloporphyrins. Here are some intriguing facts:

  • Metalloporphyrins: This compound falls under the category of metalloporphyrins, which are known for their role in various biological processes. They are essential to many life forms, acting as components in hemoglobin and myoglobin, responsible for oxygen transport and storage.
  • Iron's Role: The presence of iron is significant as it is a key transition metal that facilitates electron transfer in biochemical reactions. Its ability to exist in multiple oxidation states allows it to participate in redox reactions crucial for cellular respiration and metabolism.
  • Unique Structure: The intricate structure of this compound, featuring numerous substituents, allows it to potentially exhibit unique optical and electronic properties, which might have applications in photodynamic therapy and as a photosensitizer in solar energy conversion.
  • Carboxyethyl Group: The incorporation of a carboxyethyl functional group could enhance water solubility and make it easier to modify for specific applications in drug delivery or targeted therapy.
  • Porphyrin Chemistry: Porphyrins are often referred to as nature's “red pigments” due to their vibrant colors, which result from their extensive conjugated systems. This compound is likely no exception, showcasing brilliant hues that are of great interest in studies of photochemistry and light absorption.

In conclusion, the compound 3-[18-(2-carboxyethyl)-3,8,13,17-tetramethyl-7,12-divinyl-2,3,6,7,8,11,12,13,14,17-decahydroporphyrin-21,22,23,24-tetraid-2-yl]propanoic acid; iron highlights the intersection of inorganic chemistry and biochemistry, offering a glimpse into the molecular mechanisms that sustain life while also presenting avenues for innovative research in nanotechnology and medicinal chemistry.