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Spiro(bicyclo<2.2.1>heptane-2,2'-oxacyclopropane) is a complex organic compound with a unique molecular structure. It consists of a spiro ring system, which is a type of cyclic compound where two rings share a common atom. In this case, the two rings are a bicyclo<2.2.1>heptane and an oxacyclopropane. The bicyclo<2.2.1>heptane ring is a seven-membered ring with two carbon atoms forming a bridge, while the oxacyclopropane ring is a three-membered ring containing one oxygen atom. The two rings are connected through a spiro carbon atom, which is shared between the two rings. spiro(bicyclo<2.2.1>heptane-2,2'-oxacyclopropane) is of interest in organic chemistry due to its unusual structure and potential applications in the synthesis of other complex molecules.

173-91-1

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173-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173-91-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,7 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 173-91:
(5*1)+(4*7)+(3*3)+(2*9)+(1*1)=61
61 % 10 = 1
So 173-91-1 is a valid CAS Registry Number.

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