The NSI-189 free-base and phosphate listings identify different chemical forms. Dropping that designation leaves a purchasing request incomplete. A shared NSI-189 name and a 1 g pack size do not make the two entries identical.
A shared prefix does not remove the form
| Product name | Form designation | Supplied format | Listed mass |
|---|---|---|---|
| NSI-189 Free Base | Free base | Powder | 1 g |
| NSI-189 Phosphate | Phosphate | Powder | 1 g |
Put the form on the purchase request
Write NSI-189 Free Base or NSI-189 Phosphate in full. Preserve the same name on the order record and the laboratory inventory label so that the intended material can be traced consistently.
The catalog keeps NSI-189 free-base powder and NSI-189 phosphate powder as separate native products, each supplied as 1 g.
Equal mass is not a statement of equivalent chemical form
The mass label describes the amount of the form supplied. It does not establish identical composition or justify substituting one form into a method that specifies the other.
Likewise, a shared prefix does not establish matching solubility, stability or behavior under a particular experimental condition. Those questions require the actual material and method context.
Use identifiers as a consistency check
A chemical name, form designation and identifier should describe the same material. If they disagree, the conflict needs clarification before a laboratory relies on an exact molecular specification.
The research-identifier guide explains that process. A precise-looking number is not useful when it belongs to another form.
Compare the complete listing
Read the format, mass, stated storage and available identity information alongside the current price. The research powder category is a starting point for navigation, not a declaration that its entries are interchangeable.
If the required form is unclear in an internal request, resolve it before ordering. A supplier should not guess which form a laboratory intended from a shortened code.
Questions for the actual item
Use Chemyo Labo support with the complete listing name and the property requiring clarification. The store’s product-information guide separates identity questions from analytical result claims.
The catalog is intended exclusively for laboratory research. Nothing in this form comparison provides personal-use, medical or dosing instructions.