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Chloropyrazine14508-49-7100 % similar 2,5-Dichloropyrazine19745-07-453 % similar 2,6-Dichloropyrazine4774-14-548 % similar Methylpyrazine109-08-042 % similar 2-Chloropyridine109-09-142 % similar Iodopyrazine32111-21-042 % similar 2-Fluoropyrazine 984949-13-742 % similar Aminopyrazine5049-61-642 % similar 2-Bromopyrazine56423-63-342 % similar 2-Chloro-5-cyanopyrazine36070-75-439 % similar 2,4-Dichloropyridine26452-80-238 % similar 5-Chloro-2-pyrazinamine33332-29-538 % similar Pyrazin-2-yl-hydrazine54608-52-538 % similar 2-Chloro-5-methylpyrazine59303-10-538 % similar 2-Bromo-5-chloropyrazine912773-21-838 % similar 2,3-Dichloropyrazine4858-85-938 % similar 2-Pyrazinecarbonyl chloride19847-10-038 % similar 2-Ethylpyrazine13925-00-337 % similar Pyrazinecarbonitrile19847-12-237 % similar (Pyrazin-2-ylmethyl)amine20010-99-537 % similar