L-Cysteine, identified by its CAS number 52-90-4, stands as a semiessential proteinogenic amino acid, playing a pivotal role across multiple industries. Its unique chemical structure, featuring a thiol group, makes it exceptionally versatile in organic synthesis and biological processes. For professionals in the pharmaceutical sector, L-Cysteine serves as a crucial intermediate, enabling the synthesis of complex Active Pharmaceutical Ingredients (APIs). Its reactivity allows for precise chemical modifications, contributing to the development of life-saving medications. Sourcing high-purity L-Cysteine is paramount for manufacturers aiming for consistent quality and efficacy in their final products.
Beyond pharmaceuticals, the food industry leverages L-Cysteine extensively, particularly in flavor development. Through processes like the Maillard reaction, L-Cysteine reacts with sugars to produce savory and meaty flavors, enhancing the appeal of processed foods. Food manufacturers seeking to innovate their product lines can rely on L-Cysteine as a key ingredient for achieving desirable taste profiles. As a responsible manufacturer and supplier, we understand the critical importance of quality and consistency in these applications. We are committed to providing L-Cysteine that meets stringent industry standards, ensuring our clients can confidently incorporate it into their formulations.
The personal care industry also benefits from L-Cysteine's properties, especially in hair treatments. Its ability to interact with keratin disulfide bonds makes it a valuable component in permanent wave solutions and other styling products. For businesses in this sector, securing a reliable supply of L-Cysteine is essential for product performance and consumer satisfaction. NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to being a premier supplier of L-Cysteine, offering competitive pricing and a robust supply chain to meet the demands of global markets. Whether you are looking to buy L-Cysteine for pharmaceutical intermediates or food flavor applications, we are your trusted partner.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.