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[4.4]Orthocyclopha-1,3,11,13-tetrayne is a unique organic compound characterized by its rigid, planar structure and the presence of four acetylene groups. It is a member of the cyclophane family, which are cyclic compounds with multiple aromatic rings connected by acetylene bridges. This particular compound has a square-like structure, with the four acetylene groups arranged in a symmetrical pattern. The compound is of interest in the field of organic chemistry due to its potential applications in materials science and as a building block for more complex molecular structures. Its synthesis and properties are subjects of ongoing research, as it represents a challenging target for chemists due to its strained and highly reactive nature.

7203-21-6

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7203-21-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7203-21-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,0 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7203-21:
(6*7)+(5*2)+(4*0)+(3*3)+(2*2)+(1*1)=66
66 % 10 = 6
So 7203-21-6 is a valid CAS Registry Number.

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