1,5-dimethyl-4-nitroso-2-phenylpyrazol-3-one

(The order shall be subject to the English name)

English alias：1,5-dimethyl-4-nitroso-2-phenyl-1,2-dihydro-pyrazol-3-one; 4-Nitrosoantipyrin; 2,3-dimethyl-4-nitroso-1-phenylpyrazol-5-one; 2,3-Dimethyl-4-nitroso-1-phenyl-3-pyrazolin-5-one; 4-Nitrosoantipyrine; EINECS 212-941-6; ANTIPYRINE,4-NITROSO; 4-nitrosophenazone; 1,5-dimethyl-4-nitroso-2-phenyl-1H-pyrazol-3(2H)-one; 1,2-dihydro-2,3-dimethyl-4-nitroso-1-phenylpyrazol-5-one;
CAS：885-11-0 Molecular formula：C₁₁H₁₁N₃O₂ Molecular weight：217.22