Caustic and Toxicological Determination
The way to get the information you seek is to obtain a safety data sheet (SDS) for either your product or each of its ingredients.
Safety data sheets have slightly different content by jurisdiction, but most follow a common format, especially those that follow the Globally Harmonized system (GHS).
In a SDS that follows the GHS, Section II identifies the hazards of the substance using tightly defined common phrases. If the product or one of its compounds is toxic in some way or corrosive, Section II will have that information.
Section II contains &quot;Hazard Statements&quot; and &quot;Precautionary Statements&quot;. Here is a SDS for acetic acid. There are three hazard statements:

H226 - Flammable liquid and vapor
H314 - Causes severe skin burns and eye damage
H402 - Harmful to aquatic life

There are numerous precautionary statements. The Hazard statements provide the information you want. Here is a list of GHS hazard statements.