A In view of security information storage, preserving the information at the molecular level is an attractive research goal. This eventually led to the extensive development of “Molecular Keypad Locks” which can be opened only by a particular sequence of chemical inputs. Here we report a molecular keypad lock from two bioresource derived components, one is an azobenzene system from cardanol and a graphene quantum dot derived from honey. This system further used to construct an IMPLICATION logic gate and a fluorescent probe for the detection of a poisonous pesticide Carbofuran. This is the first example of molecular keypad lock constructed from sustainable components and thus opens a new pathway in the field of “Sustainable Molecular Electronics”.