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21886-63-5

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21886-63-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21886-63-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,8 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21886-63:
(7*2)+(6*1)+(5*8)+(4*8)+(3*6)+(2*6)+(1*3)=125
125 % 10 = 5
So 21886-63-5 is a valid CAS Registry Number.

21886-63-5Relevant articles and documents

METHOD FOR PRODUCING 1,2-PHENYLETHANE COMPOUND USING ATOM TRANSFER RADICAL COUPLING REACTION

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Page/Page column 9-10, (2009/01/23)

An object of the present invention is to provide a method capable of producing a 1,2-phenylethane compound with extremely high yield in a short amount of time. Disclosed is a method for producing a 1,2-phenylethane compound, which comprises subjecting a compound represented by formula (I): wherein Ra represents a hydrogen atom or a substituted or unsubstituted phenyl group; Rb represents a hydrogen atom or a substituent; n represents an integer of 1 to 5 and, when n is 2 or more, Rb may be the same or different, or may be combined with each other to form a ring; and X represents a halogen atom; to a coupling reaction in the presence of a transition metal complex to produce a compound represented by formula (II):

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