Understanding the precise chemical identity of a molecule is fundamental to appreciating its function and potential applications. 4'-Phosphopantetheine, a compound of considerable biochemical importance, is defined by its unique molecular structure and properties.

Chemically, 4'-Phosphopantetheine is known by its IUPAC name: [(3R)-3-hydroxy-2,2-dimethyl-4-oxo-4-[[3-oxo-3-(2-sulfanylethylamino)propyl]amino]butyl] dihydrogen phosphate. Its molecular formula is C₁₁H₂₃N₂O₇PS, yielding a molecular weight of approximately 358.35 grams per mole. This composition reveals a complex molecule featuring a pantothenic acid moiety linked to a phosphate group, along with a beta-mercaptoethylamine residue. This specific arrangement is key to its biological activity.

The compound is cataloged under CAS Number 2226-71-3, a unique identifier crucial for scientific literature and regulatory purposes. Its InChI representation is InChI=1S/C11H23N2O7PS/c1-11(2,7-20-21(17,18)19)9(15)10(16)13-4-3-8(14)12-5-6-22/h9,15,22H,3-7H2,1-2H3,(H,12,14)(H,13,16)(H2,17,18,19)/t9-/m0/s1, with a corresponding InChI Key of JDMUPRLRUUMCTL-VIFPVBQESA-N. These standardized identifiers ensure unambiguous reference to the compound across different databases and research platforms.

The physical properties of 4'-Phosphopantetheine are also noteworthy. While specific detailed physical descriptions can vary depending on its salt form or purity, it is generally handled as a solid. Its structure features multiple hydrogen bond acceptors and donors, contributing to its solubility and interaction profiles in biological systems. The molecule's notable feature is its flexible phosphopantetheine chain, approximately two nanometers in length, which allows the attached acyl groups to access various active sites within enzyme complexes.

These structural and chemical characteristics underpin its primary applications as a critical cofactor in biosynthesis. It is essential for the function of acyl carrier proteins (ACPs) in fatty acid synthases, polyketide synthases, and nonribosomal peptide synthetases. This makes it an indispensable tool for researchers studying these fundamental metabolic pathways, as well as for those involved in synthetic biology and industrial fermentation processes aiming to optimize the production of valuable biomolecules.

For scientists and researchers requiring high-purity 4'-Phosphopantetheine for their work, sourcing from reliable suppliers is paramount. NINGBO INNO PHARMCHEM CO.,LTD. provides this crucial biochemical, supporting advancements in understanding cellular mechanisms and developing new biotechnological applications. Accurate identification and quality control of such compounds are vital for reproducible and meaningful scientific outcomes.