Start with the complete name
Identifiers such as DAC, NO DAC, LR3 and PEG belong in the product record. Removing a suffix to simplify a spreadsheet can combine materials that should remain distinct. Keep a separate field for alternate names and use the specification document to establish whether they describe the same substance.
Separate amount from concentration
A catalog listing of 10 mg describes a mass. It does not state a concentration unless a volume is also specified. Two vials with the same amount may still have different formulations or intended laboratory contexts.
Record the format
Use separate fields for an individual item, a blend and a stack. For a blend, record the component breakdown as well as total mass. For a stack, keep each component and vial quantity visible.
Ask for the missing details
A clear enquiry includes the catalog code, the exact size and the quantity requested. Ask for the current specification and batch documentation rather than assuming that a name or illustration supplies those details. Catalog illustrations identify entries; they are not evidence of the actual package contents.