α-Phenyl-β-chloromercuroethanol, also known as phenylmercuric acetate or PMA, is an organomercury compound with the chemical formula C8H8ClHgO2. It is a white crystalline solid that is soluble in water and organic solvents. PMA is primarily used as a fungicide, bactericide, and preservative in various applications, including the preservation of wood, textiles, and paper products. It is also used in the pharmaceutical industry as a topical antiseptic and disinfectant. However, due to its high toxicity and potential environmental and health risks, the use of PMA has been restricted or banned in many countries.
The CAS Registry Mumber 39849-96-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,8,4 and 9 respectively; the second part has 2 digits, 9 and 6 respectively. Calculate Digit Verification of CAS Registry Number 39849-96: (7*3)+(6*9)+(5*8)+(4*4)+(3*9)+(2*9)+(1*6)=182 182 % 10 = 2 So 39849-96-2 is a valid CAS Registry Number.