The term undecylenic acid is identified in base64 scheme by the sequence dW5kZWN5bGVuaWMgYWNpZA==, while the MD5 signature is equal to 570ed951f5a0e500ec914476a1b030be. The ASCII encoding of undecylenic acid in hexadecimal notation is 756e646563796c656e69632061636964.