It appears to have 8 stress bars which would mean either rotkeil or sp. Inirida. Considering the rarity of Inirida, especially at that size, it's more likely a rotkeil. Red shoulder/raspberry/raspberry head are all common/trade names for rotkeil. They will not start to color up and develop the red spotting on the shoulder until 3 - 4", then it will slowly spread in good quality specimens until it has an entire band of red.
You also have to realize that rotkeil will breed with all other species of substrate-spawning severum, so there are a lot of mutts out there in pet stores. You'll never know with 100% certainty what genetics it contains.