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Bis-(4,5,6-tetramethyl-indanyl-(1))-ether, also known as tetralindole or 1,1'-(oxydi-4,1-phenylene)bis(4,5,6,7-tetrahydro-1H-indene), is a synthetic organic compound characterized by its unique molecular structure. It is composed of two indane rings, each substituted with four methyl groups at positions 4, 5, and 6, and connected by an ether linkage at the 1-position. Bis-(4,5,6-tetramethyl-indanyl-(1))-ether is known for its potential applications in various fields, including materials science and pharmaceuticals, due to its specific chemical properties and structural features. The compound's stability and reactivity can be influenced by the presence of the methyl groups, which can affect its electronic and steric properties.

747-81-9

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747-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 747-81-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,4 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 747-81:
(5*7)+(4*4)+(3*7)+(2*8)+(1*1)=89
89 % 10 = 9
So 747-81-9 is a valid CAS Registry Number.

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