"It's noteworthy" is correct and usable in written English. You can use it to draw attention to something important or unusual that you want the reader to remember. For example, "It's noteworthy that the author writes about the same themes in all her books.".
It's noteworthy that Boring's life and career in China had always been challenged by the unstable social environment and inconvenient material condition.
It's noteworthy for its superb wordless vocals, its spaghetti-Western vibe, and its innovative video, which demonstrates the effect of sound waves upon Oobleck.
But it's noteworthy beyond its addling all-computer reservation system and the intense, revelatory pleasures of its partly Asian, partly French, wholly inventive food.
It's noteworthy that three of Twitter's top communications executives have left in the past month.
It was noteworthy but was still outpaced by its homemade-tasting bun, a rarity.
It is noteworthy, however, that the controversy has nothing to do with Mr. Webster's age.
"It is noteworthy that it still went ahead and announced its intention.
Thanks to Ludwig my first paper got accepted! The editor wrote me that my manuscript was well-written
Listya Utami K.
PhD Student in Biology, Bandung Institute of Technology, Indonesia