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I'm interested in your pythium oligandrum powder and would like to know more about its properties and potential applications. Could you provide detailed information on the specifications, including purity levels and any available certifications? This would help me better assess its suitability for my needs. Additionally, I'd appreciate it if you could send a sample for evaluation. Testing a small quantity would be crucial for determining its effectiveness in my specific use cases. Please let me know if this is possible and any associated costs or conditions for the sample provision. Thank you!