S&W used three style of extractors. The "long extractor" was only on the 39 no dash nd 52 no-dash and 52-1 models. The 39-2 and 52-2 (and nearly every other 1-2-3rd Gen) uses the standard extractor.

A few 2nd Gen 9mm's used an odd tall, really short extractor, these are nearly irrelevant in the grand scheme. Your CS-45 has the standard extractor.