The phrase "is pertinent to" is often used to indicate that a particular topic or information is strictly related or applicable to the subject matter at hand. Some alternate phrases that convey the same idea include "is relevant to," "applies to," "concerns," "relates to," "connects to," "impacts," "bears on," "tied to," and "refers to." Using these synonyms can help to add variety and precision to your writing, making it easier to express your thoughts and ideas more clearly. Understanding the different nuances of each phrase can also help you choose the most appropriate one for your specific context or audience.