((2R,4R,6R)-2-Benzenesulfonylmethyl-6-methoxy-tetrahydro-pyran-4-yloxy)-tert-butyl-dimethyl-silane is a complex organic compound with the molecular formula C20H30O5SSi. It features a chiral center, with the R configuration at the 2nd, 4th, and 6th carbon atoms. The molecule consists of a benzene ring with a sulfonyl group attached to the 2nd carbon, a tetrahydro-pyran ring with a methoxy group at the 6th position, and a tert-butyl-dimethyl-silane group. ((2R,4R,6R)-2-Benzenesulfonylmethyl-6-methoxy-tetrahydro-pyran-4-yloxy)-tert-butyl-dimethyl-silane is characterized by its unique stereochemistry and the presence of various functional groups, making it potentially useful in organic synthesis and as a protecting group in chemical reactions.
The CAS Registry Mumber 91312-76-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,3,1 and 2 respectively; the second part has 2 digits, 7 and 6 respectively. Calculate Digit Verification of CAS Registry Number 91312-76: (7*9)+(6*1)+(5*3)+(4*1)+(3*2)+(2*7)+(1*6)=114 114 % 10 = 4 So 91312-76-4 is a valid CAS Registry Number.