The chemical compound "methyl (5S,8R,9S,10S,13R,14S,17S)-10,13-dimethyl-3-oxo-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthrene-17-carboxylate" is a complex organic molecule with a highly specific stereochemistry. It belongs to the class of steroids, which are characterized by a carbon skeleton consisting of four fused rings. This particular compound features a methyl ester group attached to the 17th carbon atom of the cyclopenta[a]phenanthrene ring system, which is a type of polycyclic aromatic hydrocarbon. The compound's structure is further defined by the presence of multiple chiral centers, indicated by the (5S,8R,9S,10S,13R,14S,17S) notation, which specifies the three-dimensional arrangement of atoms around these centers. The 10,13-dimethyl and 3-oxo groups contribute to its unique chemical properties. methyl (5S,8R,9S,10S,13R,14S,17S)-10,13-dimethyl-3-oxo-1,2,4,5,6,7,8,9 ,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthrene-17-carboxyl ate is likely to be found in the realm of pharmaceuticals or biochemistry, where such specific stereochemical configurations are crucial for biological activity.
The CAS Registry Mumber 4139-88-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,3 and 9 respectively; the second part has 2 digits, 8 and 8 respectively. Calculate Digit Verification of CAS Registry Number 4139-88: (6*4)+(5*1)+(4*3)+(3*9)+(2*8)+(1*8)=92 92 % 10 = 2 So 4139-88-2 is a valid CAS Registry Number.
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