MMH/NTO are not used for main rocket engine propulsion but only for maneuvering and attitude control thrusters once on orbit. Occasionally also for upper stages and for small attitude control steering thrusters on some launch vehicles. Extremely nasty, poisonous, corrosive and hypergolic chemicals, meaning the two of them explode on contact.
Yes, explode.
Like some rifle/pistol powders. Some are dorsal and forgiving, others can be great propellants, unless you operate outside the parameters and they explode instead of burn.
I reload a lot of calibers, good friend from childhood liked one of my pistols and shot it. He bought one like it except in 45 long colt. He shot my 357 version and liked the loads I was shooting. One day he called me and asked me if I had more powder like I had used. He wanted to trade one he used (he did not like the unburned residue of his). So I traded with him, I had use for what he traded but we have been friends since childhood and the family friendship goes back 3 generations.
I gave him the load data and cautioned him about going too low on load parameters.
He treated it like his old reliable and got himself in trouble. He loaded smaller powder loads .2 grains per step. the Third step he shot swelled in his cylinder and he had to ram it out and had hard time removing the residue brass traces.
Reloading cannot be taken lightly, some times less is more and it is dangerous.
I offered to trade him his powder back, he said he poured what I gave him out. He was afraid of it. Head shake.
When there is a skip in load data that does not make sense, there is usually a reason it is not shown.