Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In a patent, Synthetic Route of 141-30-0, molecular formula is C4H2Cl2N2, introducing its new discovery. Synthetic Route of 141-30-0
Compounds of the formula (I) and their stereoisomers STR1 wherein A, B, C’ and D independently of one another denote CH or N, in which at least one of the symbols A, B, C’ or D must correspond to a nitrogen atom, X denotes CH2 or oxygen, R1 denotes a radical bonded to a carbon atom from the series comprising H, trialkylsilyl, halogen, nitro, cyano, alkenyl, alkynyl, amino, cycloalkyl, phenyl, phenxy, alkoxy, alkenyloxy, alkynyloxy, hydroxycarbonyl, alkylthio, cycloalkyloxy, alkylcarbonyl, alkoxycarbonyl, alkenyloxycarbonyl, alkynyloxycarbonyl, halogenoalkyl, alkoxyalkyl, halogenoalkoxy, halogenoalkylthio, halogenoalkoxyalkyl, alkylthioalkyl, alkoxyalkoxy, halogenoalkoxyalkoxy, alkenyloxyalkoxy, halogenoalkenyloxy, alkoxyalkylthio, alkylthioalkoxy, alkylthioalkylthio, halogenoalkoxycarbonyl, halogenoalkenyloxycarbonyl or dialkylamino or two radicals R1 when they are positioned ortho to one another together denote a methylenedioxy, ethylenedioxy or alkylene radical, R2 and R3 independently of one another denote alkyl, alkenyl or phenyl, or R2 and R3 denote an alkylene chain which–together with the quaternary carbon atom-forms an unsubstituted or fluorinesubstituted ring having three to six ring members, R4 denotes –H, F, –CN, –CCl3, –C CH, (C1 -C4)alkyl, –C–NH2, S R5 denotes pyridyl, furyl or thienyl which can all be substituted, phthalimidyl, dialkylmaleimidyl, thiophthalimidyl, dihydrophthalimidyl, tetrahydrophthalimidyl or substituted phenyl, or R4 and R5 –together with the carbon atom bridging them–denote an optionally substituted indanyl, cyclopentenoyl or cyclopentenyl radical and n denotes 0, 1 or 2, possess advantageous properties for combating pests, in particular insects and acarids. Furthermore, processes for the preparation of compounds of the formula I are described.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 141-30-0 is helpful to your research. Synthetic Route of 141-30-0
Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1508 – PubChem