Although it has not been researched formally or anything, 2c-b has been used by probably more people than any of the 2c-x drugs, is pretty mainstream these days, and hardly classifies as a research chemical anymore. 2c-b orally at doses over 100mg has been handled fine by people, although it is clearly way too much. Once I went really overboard with sniffing 2c-b, no idea how much I did but it was a lot. I did get quite intense panic and feeling like I was overdosed, but I was totally fine. I don't think I have ever heard of anyone overdosing and dying from 2c-b, and anecdotal evidence shows that it is still fairly safe even at many times the maximum suggested dose. So I find it likely that the product they had was either a. Not 2c-b b. Cut with other shit, or perhaps not properly synthesized c. Taken at doses much larger than the suggested absolutely maximum of 50mg orally (and much less nasally)