Start with the ingredient and form
Name the ingredient you need and describe the required form. If you have a reference product, include its specification rather than relying only on a trade name.
Make specifications easy to compare
Include the parameters that matter to your application, together with units, limits and test methods where known. Attach the current specification document so it can be reviewed in context.
Add quantity, packaging and destination
State the inquiry quantity and unit, preferred packaging, destination and timing. Separate a trial quantity from an expected recurring requirement when relevant.
Explain the documents you need
List the requested specification sheet, sample COA and other relevant documents. Ask which details are product specifications and which are results for an individual batch.