You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Low molecular weight neurotransmitters are all except: and explain in detail?
Low molecular weight neurotransmitters: (Small molecule transmitter) Glutamate GABA Ach NA Dopamine High molecular weight neurotransmitters: (Large molecule transmitter) NP Y Orexins Opioid CA