The chemical compound "(3aR,5aC)-1,2,3,3a,4,5,5a,6,7,8-decahydro-As-indacene-4t,5t-dicarboxylic acid-anhydride" is a complex organic molecule with a decahydro-As-indacene core structure. It features a decalin ring system with two carbonyl groups (dicarboxylic acid) at the 4t and 5t positions, which are connected through an anhydride bridge. The stereochemistry at the 3a position is R (rectus) and at the 5a position is C (cis). (3ar,5ac)-1,2,3,3a,4,5,5a,6,7,8-decahydro-As-indacene-4t,5t-dicarboxylic acid-anhydride is characterized by its unique molecular geometry and functional groups, which may have specific applications in the field of organic chemistry, potentially in the synthesis of pharmaceuticals or other specialty chemicals.
The CAS Registry Mumber 1143-15-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,4 and 3 respectively; the second part has 2 digits, 1 and 5 respectively. Calculate Digit Verification of CAS Registry Number 1143-15: (6*1)+(5*1)+(4*4)+(3*3)+(2*1)+(1*5)=43 43 % 10 = 3 So 1143-15-3 is a valid CAS Registry Number.