A129730 [ 34334-96-8 ]
3-Methyl-5-nitro-1H-pyrazole
A152372 [ 1048925-02-5 ]
5-Methyl-3-nitro-1H-pyrazole
A953093 [ 1170783-25-1 ]
1,3-Dimethyl-5-nitro-1H-pyrazole