The term hydroxybenzoic acid is identified in base64 scheme by the sequence aHlkcm94eWJlbnpvaWMgYWNpZA==, while the MD5 signature is equal to 80270da1c7cc45f8710c02c0df8b7d01. The ASCII encoding of hydroxybenzoic acid in hexadecimal notation is 687964726f787962656e7a6f69632061636964.