Sometimes the manufacturer or the supplier should be listed to make it a complete name. In these cases, the product name is preferable. The key to all these questions is to report the original name on the bottle that the material was purchased in. If we have a question refer to the manufacturer's catalogue and check on the chemical identity of the material. You do not have to fill this in at all.
Many people wish to identify the location of their chemicals in their labs or shops.
You should use consistent names for your locations so that the computer can handle them as the same things. You may indicate these locations on your map if you wish. If you entered them to ease your updating of the inventory, when you receive your next update report, it will be sorted by locations. Many regulations require that we report quantities of certain chemicals or types of hazards. So we need real units like pounds, liters, or grams.