13551-81-0 1H-PYRAZOLE, 3-CHLORO-5-METHYL-4-NITRO- 3-Chloro-5-methyl-4-nitro-1H-pyrazole 4-23-00-00591 (Beilstein Handbook Reference) 5-Chloro-3-methyl-4-nitropyrazole 52452-89-8 66163-48-2 6814-58-0 73536-00-2 83588-42-5 ABG 3030 BRN 0005657 Caswell No. 196A EPA Pesticide Chemical Code 207100 Pyrazole, 3(or 5)-chloro-5(or 3)-methyl-4-nitro- Release