At NINGBO INNO PHARMCHEM CO.,LTD., we pride ourselves on a deep understanding of the chemicals we manufacture and supply. Fmoc-Lys-OH (CAS 105047-45-8) is a key pharmaceutical intermediate for us, and detailing its chemical properties is essential for our clients in the B2B sector. This compound, chemically known as N-alpha-Fmoc-L-lysine, plays a vital role in various synthetic processes, particularly in the pharmaceutical industry.

Fmoc-Lys-OH has the molecular formula C21H24N2O4 and a molecular weight of approximately 368.426 g/mol. Its structure features the distinctive Fmoc protecting group attached to the alpha-amino group of L-lysine, and a free carboxylic acid group. The lysine side chain has a terminal primary amine that remains unprotected in this specific form, making it available for further functionalization or conjugation. This structural characteristic is what makes Fmoc-Lys-OH so valuable as a versatile building block.

From a manufacturing standpoint, controlling the purity of Fmoc-Lys-OH is paramount. Our standard specification typically requires a purity of 97% minimum, often achieved through meticulous synthesis and purification techniques. The compound typically presents as white fine crystals. While its boiling point is high (around 607.6 °C at 760 mmHg, according to some data), its melting point is usually not a primary specification, and it remains a solid under standard laboratory conditions. The EINECS number is generally not readily available or applicable in common contexts.

As a leading supplier and manufacturer of pharmaceutical intermediates in China, we ensure that each batch of Fmoc-Lys-OH we provide meets these critical specifications. This detailed understanding of its chemical properties allows our clients to confidently buy and utilize this compound in their own synthesis processes, trusting in the quality and reliability we deliver.