Custom Manufacturing, Project Outsourcing, your Trusted Partner from China
For procurement professionals in the chemical, pharmaceutical, and food industries, the decision to buy L-Tryptophan (CAS 73-22-3) involves careful consideration of quality parameters and supplier reliability. As an essential amino acid, L-Tryptophan's efficacy and safety are directly linked to its purity and manufacturing standards. This guide outlines the key aspects to evaluate when sourcing this vital compound.
The first crucial aspect is the product's physical appearance. High-quality L-Tryptophan typically presents as white crystals or a crystalline powder. Beyond visual inspection, detailed specifications provided by the supplier are paramount. These should include the molecular formula (C11H12N2O2), molecular weight (204.23 g/mol), and confirmation of its essential amino acid status. Purity levels, often stated as an assay percentage (e.g., >98.5%), are critical, especially for pharmaceutical and high-end nutritional applications.
Other important technical specifications to scrutinize include specific rotation ([α]D25), pH range, and limits for loss on drying, residue on ignition, chloride, sulfate, iron, and heavy metals. These parameters are indicative of the manufacturing process's control and the final product's overall quality. A reputable L-Tryptophan supplier will readily provide a Certificate of Analysis (CoA) detailing these specifications.
When selecting a supplier, consider their experience and reputation in the market. A manufacturer with a proven track record in producing amino acids or pharmaceutical intermediates is likely to offer more consistent quality and reliable supply. Inquire about their production capacity, quality control systems, and compliance with regulatory standards. Furthermore, understanding their pricing structure, minimum order quantities (MOQs), and delivery timelines is essential for effective procurement planning.
For businesses looking to buy L-Tryptophan, especially in bulk from China, it is advisable to engage with manufacturers who offer competitive pricing without compromising on quality. Establishing a strong relationship with a trusted supplier ensures a stable supply of L-Tryptophan, allowing you to focus on innovation and production. We are dedicated to being that trusted partner, providing premium L-Tryptophan and exceptional service.
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.
