The chemical compound "(1R,4aR,4bS,7S,8aR,10aR)-7-(2-Acetoxy-ethyl)-1,4a,7-trimethyl-9-oxo-tetradecahydro-phenanthrene-1-carboxylic acid methyl ester" is a complex organic molecule with a unique structure. It is characterized by a phenanthrene core, which is a type of polycyclic aromatic hydrocarbon, and features a tetradecahydro (14-carbon) chain. The compound has several chiral centers, indicated by the R and S configurations, which determine its three-dimensional structure. It includes a methyl ester group, an acetoxyethyl substituent, and a carboxylic acid group, which contribute to its reactivity and potential applications in various chemical and pharmaceutical processes. (1R,4aR,4bS,7S,8aR,10aR)-7-(2-Acetoxy-ethyl)-1,4a,7-trimethyl-9-oxo-tetradecahydro-phenanthrene-1-carboxylic acid methyl ester's specific arrangement of functional groups and stereochemistry makes it a distinct entity in the realm of organic chemistry.
The CAS Registry Mumber 1740-43-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,4 and 0 respectively; the second part has 2 digits, 4 and 3 respectively. Calculate Digit Verification of CAS Registry Number 1740-43: (6*1)+(5*7)+(4*4)+(3*0)+(2*4)+(1*3)=68 68 % 10 = 8 So 1740-43-8 is a valid CAS Registry Number.
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