Toluene-4-sulfonic acid-(2,2,5,5-tetradeuterio-cyclopentyl ester) is a complex organic compound with the molecular formula C12D4H10O3S. It is a derivative of toluene-4-sulfonic acid, where the cyclopentyl group is substituted with deuterium atoms at the 2, 2, 5, and 5 positions. toluene-4-sulfonic acid-(2,2,5,5-tetradeuterio-cyclopentyl ester) is primarily used as a reagent in organic synthesis, particularly in the preparation of various cyclopentyl derivatives. Its unique structure and deuterium labeling make it a valuable tool for studying the properties and reactions of cyclopentyl-containing compounds, as well as for applications in isotope labeling and tracer studies.
The CAS Registry Mumber 6816-29-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,1 and 6 respectively; the second part has 2 digits, 2 and 9 respectively. Calculate Digit Verification of CAS Registry Number 6816-29: (6*6)+(5*8)+(4*1)+(3*6)+(2*2)+(1*9)=111 111 % 10 = 1 So 6816-29-1 is a valid CAS Registry Number.