The term chlortetracycline is identified in base64 scheme by the sequence Y2hsb3J0ZXRyYWN5Y2xpbmU=, while the MD5 signature is equal to d37f9e6ffb6b4f1be32f9d61e9d64a79. The ASCII encoding of chlortetracycline in hexadecimal notation is 63686c6f7274657472616379636c696e65.