Cromolyn sodium

When sourcing Cromolyn Sodium (CAS No. 15826-37-6), buyers must ensure the product complies with international pharmacopeia standards such as USP (United States Pharmacopeia), BP (British Pharmacopeia), or EP (European Pharmacopeia). Key technical parameters to verify include purity levels (typically ≥98% or ≥99%), heavy metal content (<20ppm), and loss on drying (≤10.0%). For specialized applications like inhalation or ophthalmic use, particle size distribution (micronization) and endotoxin levels are critical factors that must be documented in the Certificate of Analysis (COA).

As a pharmaceutical-grade ingredient, the supplier must possess a GMP (Good Manufacturing Practice) certificate. Additionally, look for suppliers with ISO 9001:2015 for quality management and ISO 14001 for environmental standards. If the product is intended for regulated markets, ask for the Drug Master File (DMF) number or a CEP (Certificate of Suitability) to facilitate your own product registration process. For food-grade or specific dietary applications, Halal and Kosher certifications may also be required.

Cromolyn Sodium acts as a mast cell stabilizer. It is primarily used in the production of anti-asthmatic inhalers, nasal sprays for allergic rhinitis, and ophthalmic solutions for allergic conjunctivitis. Buyers should confirm the material's solubility in water (it should be freely soluble) and its stability under light, as it is sensitive to UV exposure and requires amber-colored, airtight packaging to maintain efficacy.

To ensure transaction security, always use Trade Assurance services provided by reputable platforms like Made-in-China.com. Before placing a bulk order, it is mandatory to request a pre-shipment sample for third-party lab testing (e.g., SGS or Intertek). Avoid suppliers who refuse to provide a Batch Manufacturing Record (BMR) or those whose pricing is significantly lower than the global market average, as this often indicates adulterated or sub-standard material.

Cromolyn Sodium is a chemical powder; therefore, it requires a Material Safety Data Sheet (MSDS) and a Non-Dangerous Goods Certificate for air or sea freight. Ensure the supplier is experienced in Cold Chain logistics if your specific formulation requires temperature control, though standard Cromolyn Sodium is generally stable at room temperature. Be aware of import duties and VAT specific to pharmaceutical ingredients in your country, and ensure the HS Code (typically 2932.99) is correctly declared to avoid customs delays.

Focus negotiations on long-term supply stability rather than just the lowest price. Request a tiered pricing structure based on annual volume (e.g., 100kg vs. 500kg). Professional buyers should also negotiate payment terms that include a 30% deposit and 70% balance payment after the presentation of a third-party inspection report. Ensure the contract specifies rejection criteria based on COA deviations to protect your investment.