The term hydroxybutyric acid is identified in base64 scheme by the sequence aHlkcm94eWJ1dHlyaWMgYWNpZA==, while the MD5 signature is equal to 0e8c8eeaa9e00967b96c1e354e5f3122. The ASCII encoding of hydroxybutyric acid in hexadecimal notation is 687964726f7879627574797269632061636964.