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415680-04-5

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415680-04-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 415680-04-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,5,6,8 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 415680-04:
(8*4)+(7*1)+(6*5)+(5*6)+(4*8)+(3*0)+(2*0)+(1*4)=135
135 % 10 = 5
So 415680-04-5 is a valid CAS Registry Number.

415680-04-5Downstream Products

415680-04-5Relevant articles and documents

Synthesis of 2,3-disubstituted benzo[b]thiophenes via palladium-catalyzed coupling anphilic cyclization of terminal acetylenes

Yue, Dawei,Larock, Richard C.

, p. 1905 - 1909 (2002)

2,3-Disubstituted benzo[b]thiophenes have been prepared in excellent yields via coupling of terminal acetylenes with commercially available o-iodothioanisole in the presence of a palladium catalyst and subsequent electrophilic cyclization of the resulting

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