Sodium starch glycolate

Sodium Starch Glycolate is primarily used as a superdisintegrant in tablet and capsule formulations. When selecting a supplier, you must ensure the product exhibits rapid swelling properties upon contact with water, typically increasing in volume by 200-300%. High-quality SSG should facilitate tablet disintegration within 1-5 minutes to ensure optimal drug bioavailability. You should also verify the degree of substitution, which significantly impacts the hydration rate and efficiency of the disintegrant.

As a pharmaceutical excipient, SSG must strictly adhere to international pharmacopoeia standards, including USP-NF, BP, or Ph. Eur. Ensure the supplier provides a Certificate of Analysis (CoA) for every batch. For global trade, prioritize manufacturers with GMP (Good Manufacturing Practice) certification and ISO 9001 quality management systems. If the product is intended for the US market, check if the supplier has a Drug Master File (DMF) registered with the FDA to simplify your finished product's regulatory approval.

The particle size distribution is critical; a finer powder generally provides a smoother tablet surface but may affect flowability. Most standard SSG has a particle size where 95% passes through a 200-mesh screen. Additionally, the pH value of a 2% dispersion should typically fall between 5.5 and 7.5 (or 3.0 to 5.0 for certain grades). Deviations in pH can affect the chemical stability of the active pharmaceutical ingredient (API) in your formulation.

Sodium Starch Glycolate is hygroscopic, meaning it readily absorbs moisture from the air. It must be stored in tightly sealed, moisture-proof containers in a cool, dry environment. Standard shelf life is usually 2 to 5 years if stored correctly. Buyers should request stability testing data from the supplier to confirm that the disintegration efficiency does not degrade over time under various humidity conditions.

Always utilize third-party inspection services (such as SGS or Intertek) to perform pre-shipment sampling and testing. Do not rely solely on the supplier's internal CoA. On Made-in-China.com, look for Audited Suppliers who have undergone rigorous on-site verification of their production facilities and quality control labs.

Focus on volume-based pricing tiers; for pharmaceutical chemicals, moving from 500kg to 2 tons can often yield a 10-15% price reduction. Request free samples (100g-500g) for lab-scale pilot batches before committing to a full container. Negotiate payment terms that involve a deposit (e.g., 30%) with the balance paid only after the third-party inspection report is approved.

Ensure the product is packed in double-layer PE bags inside fiber drums to prevent moisture ingress during sea transit. Since SSG is a non-hazardous chemical, it is easier to ship than many APIs, but you must ensure the HS Code (typically 3912.90 or 3505.10) is correctly declared to avoid customs delays. For urgent R&D needs, use air freight with humidity-controlled packaging.

Use secure payment methods and trade assurance programs offered by reputable platforms like Made-in-China.com to protect your funds until delivery is confirmed. Ensure all technical specifications, including heavy metal limits (e.g., <20ppm) and microbial limits, are explicitly written into the Proforma Invoice (PI) and Sales Contract to provide legal recourse in case of disputes.