(4-acetyl-3-methyl-2-phenyl-2H-isothiazol-5-ylidene)-carbamic acid phenyl ester, also known as phenyl (4-acetyl-3-methyl-2-phenyl-2H-isothiazol-5-ylidene)carbamate, is a complex organic compound with the chemical formula C20H15NO3S. It is a derivative of isothiazolone, a heterocyclic compound with a five-membered ring containing sulfur and nitrogen atoms. This specific compound features a carbamic acid ester group attached to the phenyl ring, with an acetyl group and a methyl group on the isothiazolone core. It is often used as a preservative and biocide in various industrial applications, such as in paints, coatings, and adhesives, due to its broad-spectrum antimicrobial properties. The compound's structure and reactivity make it effective against a range of microorganisms, including bacteria, fungi, and algae, which is why it is valued in protecting materials from microbial degradation.
The CAS Registry Mumber 2789-56-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,8 and 9 respectively; the second part has 2 digits, 5 and 6 respectively. Calculate Digit Verification of CAS Registry Number 2789-56: (6*2)+(5*7)+(4*8)+(3*9)+(2*5)+(1*6)=122 122 % 10 = 2 So 2789-56-2 is a valid CAS Registry Number.