(2S,3R,4R,5S,6R)-5-chloro-6-(chloromethyl)-2-methoxytetrahydro-2H-pyran-3,4-diol is a complex organic compound with a unique molecular structure. It is a chiral molecule, meaning it has a non-superimposable mirror image, and it is composed of a tetrahydro-2H-pyran ring with various functional groups. The compound features a 5-chloro group, a 6-(chloromethyl) group, and a 2-methoxy group, which contribute to its chemical properties. The stereochemistry of the molecule is defined by the R and S configurations at the 2nd, 3rd, 4th, 5th, and 6th carbon atoms, respectively. This specific arrangement of atoms and functional groups gives the compound its distinct chemical and physical properties, making it a potentially useful building block in the synthesis of more complex molecules or a candidate for pharmaceutical applications.
The CAS Registry Mumber 4990-91-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,9 and 0 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 4990-91: (6*4)+(5*9)+(4*9)+(3*0)+(2*9)+(1*1)=124 124 % 10 = 4 So 4990-91-4 is a valid CAS Registry Number.