For procurement specialists and purchasing managers in the chemical and pharmaceutical sectors, sourcing critical raw materials like N-Hydroxy-5-norbornene-2,3-dicarboximide (HONB) requires diligence and a focus on quality. HONB, with CAS number 21715-90-2, is a vital reagent in peptide synthesis, known for its ability to improve reaction outcomes by minimizing unwanted side reactions. As a leading manufacturer and supplier of fine chemicals, we aim to provide clarity on why sourcing HONB from reputable sources is essential and what benefits it offers.
The primary function of HONB in peptide synthesis is to act as a coupling reagent that aids in the formation of amide bonds between amino acids. Crucially, it significantly reduces racemization, a process that can lead to the formation of undesired stereoisomers, thereby compromising the purity and biological activity of the final peptide product. Furthermore, HONB helps in preventing the formation of N-acylurea, another common impurity that complicates purification and lowers the yield. When you decide to buy HONB, you are investing in a higher quality end-product and a more efficient synthesis process.
For purchasers seeking a reliable supplier, understanding the specifications and quality control measures is key. A high-purity grade of HONB, typically exceeding 99.0% by HPLC, is essential for sensitive applications. As a manufacturer, we ensure that our product adheres to these strict standards, providing peace of mind for our clients. For those interested in bulk purchases or long-term supply agreements, working directly with a manufacturer can offer significant advantages, including competitive pricing and assurance of consistent availability. Many global buyers look to China for cost-effective and high-quality chemical sourcing, and we are positioned to meet these demands.
When evaluating suppliers, look for manufacturers that provide comprehensive documentation, such as Certificates of Analysis (COA) and Material Safety Data Sheets (MSDS). These documents are critical for regulatory compliance and quality assurance. If you are in need of N-Hydroxy-5-norbornene-2,3-dicarboximide for your laboratory or production facility, consider reaching out to experienced manufacturers and suppliers who can offer technical support and tailored solutions. Our commitment is to be your trusted partner, providing the essential HONB for your advanced chemical synthesis needs.
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.