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7-Chlor-2-phenoxy-tropon, also known as 7-chloro-2-phenoxytropone, is a chemical compound with the molecular formula C10H8ClO. It is a derivative of tropone, a cyclic ketone with a conjugated diene structure. 7-Chlor-2-phenoxy-tropon is characterized by the presence of a chlorine atom at the 7-position and a phenoxy group at the 2-position. 7-Chlor-2-phenoxy-tropon is primarily used in organic synthesis and as an intermediate in the production of various pharmaceuticals and agrochemicals. Its chemical properties and reactivity make it a valuable building block for the development of new compounds with potential applications in various industries.

721-40-4

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721-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 721-40-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 721-40:
(5*7)+(4*2)+(3*1)+(2*4)+(1*0)=54
54 % 10 = 4
So 721-40-4 is a valid CAS Registry Number.

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