2-Pyrazoline-1-carboxamidine, 3-methyl-5-oxo-4-(m-tolylazo)-, hydrochloride 3-Methyl-5-oxo-4-(m-tolylazo)-2-pyrazoline-1-carboxamidine hydrochloride 4-(3'-Tolyl-azo)-3-methyl-pyrazolon-(5)-yl-1-amidin hydrochlorid [German] 96731-04-3 F 2350