Yes. Fragrance oil "may" contain essential oils but generally is synthetically produced. Essential oils are 100% natural oils produced from plants & trees (sometimes using petals, roots, resin or leaves)
Be aware that if you are buying rose oil, Rose Absolute is not a pure oil.
It's actually lavender I have bought. I wanted it for antiseptic reasons. I take it a fragrance oil will be no good then. Grrrr!!
I usually use essential oils in my washing (apart from towels cos it affects the absorbency and I don't use citrus oils on coloured things) so I'll have to use this fragrance oil up that way I think. Oh well least it won't go to waste.