The term extracellular fluid is identified in base64 scheme by the sequence ZXh0cmFjZWxsdWxhciBmbHVpZA==, while the MD5 signature is equal to 1320cc35de84dce1f30cb8bb9fb37e57. The ASCII encoding of extracellular fluid in hexadecimal notation is 657874726163656c6c756c617220666c756964.