Glycine

Glycine is generally categorized into three grades: Industrial Grade (98%), Food Grade (98.5% - 99%), and Pharma Grade (99%+). Industrial grade is typically used as an intermediate for pesticides (like Glyphosate) and fertilizers. Food grade acts as a flavor enhancer, sweetener, and preservative in beverages and pet food. Pharma grade must meet USP/EP/BP pharmacopoeia standards for use in injections or specialized supplements. Always match the purity level to your specific application to avoid regulatory non-compliance.

For food and pharmaceutical applications, ensure the supplier holds ISO 9001, ISO 22000, or FSSC 22000 certifications. If exporting to specific markets, HALAL and KOSHER certifications are often mandatory. For the US market, look for FDA registration, and for the EU, ensure compliance with REACH regulations. Requesting a Certificate of Analysis (COA) for every batch is non-negotiable to verify heavy metal limits (Lead < 5ppm) and chloride content.

Most commercial Glycine is produced via the Chloroacetic Acid Ammonolysis method. High-quality manufacturers use advanced decolorization and recrystallization steps to ensure the final powder is pure white, odorless, and free of visible impurities. If the product has a yellowish tint or a strong ammonia smell, it indicates residual solvents or poor refining, which can affect the stability of your end product.

The industry standard is 25kg kraft paper bags or woven bags with a double-layer PE inner liner to prevent moisture absorption, as Glycine is hygroscopic. For large-scale industrial buyers, 500kg or 1000kg jumbo bags (FIBC) are more cost-effective. It must be stored in a cool, dry, and ventilated warehouse away from toxic or corrosive chemicals to prevent cross-contamination.

Glycine prices are heavily influenced by the cost of raw materials like Acetic Acid and Liquid Ammonia, as well as environmental protection policies in China. To mitigate risk, consider long-term supply contracts with fixed pricing or use Made-in-China.com's Diamond Suppliers who offer more stable inventory. Monitoring the Chinese environmental inspection cycles can also help you anticipate sudden factory shutdowns and price spikes.

While Glycine is generally classified as non-hazardous for transport, you must provide a Material Safety Data Sheet (MSDS) and a Certification for Safe Transport of Chemical Goods. Ensure the shipping container is moisture-proof and request palletized loading to prevent bag breakage during transit. For sea freight, FOB (Free On Board) is recommended so you can maintain control over the logistics provider and insurance.

Always conduct a factory audit or hire a third-party inspection service like SGS or Intertek to verify the supplier's production capacity. Utilize Secure Payment services on Made-in-China.com to ensure your funds are only released after you confirm receipt of the goods. Never transfer large sums to personal bank accounts; always use the company's official corporate account verified by the platform.

Top-tier suppliers can provide custom particle sizes (mesh sizes), such as fine powder or granules, depending on your formulation needs. Evaluate their R&D laboratory equipment (e.g., HPLC testing) to ensure they can provide consistent batch-to-batch quality. Suppliers who offer OEM/ODM private labeling for retail-ready supplements add significant value for B2B buyers in the health and wellness sector.