3-ethyl-2-isopropylidenehydrazono-4-methyl-2,3-dihydro-thiazole-5-carboxylic acid ethyl ester is a complex organic compound with the chemical formula C13H22N2O2S. It is a derivative of thiazole, a heterocyclic compound containing sulfur and nitrogen atoms. The molecule features a 2,3-dihydro-thiazole ring, which is a five-membered ring with one nitrogen and one sulfur atom. The 3-ethyl group and 4-methyl group are attached to the thiazole ring, while the 2-isopropylidenehydrazono group is connected to the 2-position of the ring. The 5-carboxylic acid group is esterified with an ethyl group, forming an ethyl ester. 3-ethyl-2-isopropylidenehydrazono-4-methyl-2,3-dihydro-thiazole-5-carboxylic acid ethyl ester is known for its potential applications in pharmaceuticals and agrochemicals, particularly as a chelating agent or a building block for more complex molecules. Its synthesis and properties are of interest to researchers in organic chemistry and related fields.
The CAS Registry Mumber 3161-75-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,1,6 and 1 respectively; the second part has 2 digits, 7 and 5 respectively. Calculate Digit Verification of CAS Registry Number 3161-75: (6*3)+(5*1)+(4*6)+(3*1)+(2*7)+(1*5)=69 69 % 10 = 9 So 3161-75-9 is a valid CAS Registry Number.