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1-Methylenespiro[2.5]octane is a cyclic organic compound characterized by a unique spiro structure, which consists of two fused rings connected by a common carbon atom. The compound features a seven-membered ring (heptane) and a five-membered ring (cyclopentane), with the spiro carbon atom being part of both rings. The 1-methylene group is attached to the spiro carbon, creating a double bond between the spiro carbon and the adjacent carbon in the heptane ring. This structure results in a highly strained molecule due to the angle strain and bond strain caused by the fusion of the two rings and the presence of the double bond. 1-Methylenespiro[2.5]octane is of interest in organic chemistry and can be used as a precursor in the synthesis of various complex molecules and pharmaceuticals.

4372-98-9

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4372-98-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4372-98-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,7 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4372-98:
(6*4)+(5*3)+(4*7)+(3*2)+(2*9)+(1*8)=99
99 % 10 = 9
So 4372-98-9 is a valid CAS Registry Number.

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