Diphenyl-2,5-dimethyl-phenyl-sulfoniumbromid, also known as 2,5-dimethylphenyl diphenyl sulfonium bromide, is a complex organic compound with the chemical formula C19H18BrS. It is a type of sulfonium salt, which is characterized by the presence of a positively charged sulfur atom bonded to an alkyl or aryl group. This particular compound features a 2,5-dimethylphenyl group, which is a phenyl ring with two methyl groups attached at the 2nd and 5th positions, and two phenyl groups attached to the sulfur atom. Diphenyl-2,5-dimethyl-phenyl-sulfoniumbromid is often used as a reagent in organic synthesis, particularly in reactions involving the formation of carbon-carbon bonds, and it is known for its stability and reactivity in various chemical transformations.
The CAS Registry Mumber 4024-13-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,2 and 4 respectively; the second part has 2 digits, 1 and 3 respectively. Calculate Digit Verification of CAS Registry Number 4024-13: (6*4)+(5*0)+(4*2)+(3*4)+(2*1)+(1*3)=49 49 % 10 = 9 So 4024-13-9 is a valid CAS Registry Number.