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(3aR,4R,7S)-1-Oxo-1,4,7,7a-tetrahydro-4,7-methano-indene-3a-carboxylic acid ethyl ester is a complex organic compound with the molecular formula C13H16O3. It is a derivative of indene, a tricyclic aromatic hydrocarbon, and features a carboxylic acid group at the 3a-position, which is esterified with an ethyl group. The compound's stereochemistry is defined by the (3aR,4R,7S) configuration, indicating the specific arrangement of atoms in three-dimensional space. This molecule is of interest in organic chemistry and may have potential applications in the synthesis of pharmaceuticals or other specialty chemicals due to its unique structure and properties.

56689-06-6

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56689-06-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56689-06-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,6,8 and 9 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 56689-06:
(7*5)+(6*6)+(5*6)+(4*8)+(3*9)+(2*0)+(1*6)=166
166 % 10 = 6
So 56689-06-6 is a valid CAS Registry Number.

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