Pentachlorphenylmercaptoaceton, also known as 2-(2,3,4,5,6-pentachlorophenylthio)-N-hydroxyiminoacetamide, is a chemical compound with the molecular formula C8H5Cl5NO2S. It is a derivative of pentachlorophenol, which is a widely used pesticide and wood preservative. Pentachlorphenylmercaptoaceton is a colorless to pale yellow crystalline solid with a strong, pungent odor. It is used as an intermediate in the synthesis of various pesticides and has been found to be a contaminant in some pentachlorophenol-treated wood products. Due to its potential environmental and health risks, its use and production have been restricted in many countries.
The CAS Registry Mumber 7751-77-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,5 and 1 respectively; the second part has 2 digits, 7 and 7 respectively. Calculate Digit Verification of CAS Registry Number 7751-77: (6*7)+(5*7)+(4*5)+(3*1)+(2*7)+(1*7)=121 121 % 10 = 1 So 7751-77-1 is a valid CAS Registry Number.