Beta-globin is a protein, and proteins are made up of amino acids. Therefore, it doesn't have a simple molecular formula like a small organic molecule.

Instead, beta-globin is described by its amino acid sequence, which is a chain of 146 amino acids. This sequence determines the protein's structure and function.

Here's a breakdown of why you can't use a traditional molecular formula for beta-globin:

* Complexity: Proteins are large and complex molecules, with multiple amino acids linked together in a specific order.

* Variability: The amino acid sequence of beta-globin can vary slightly between individuals, leading to different versions of the protein.

* Structure: The final structure of beta-globin is not just determined by its amino acid sequence but also by how the chain folds and interacts with itself and other molecules.

Instead of a molecular formula, you can find the amino acid sequence of beta-globin in databases like UniProt.