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1421914-69-3

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1421914-69-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1421914-69-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,9,1 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1421914-69:
(9*1)+(8*4)+(7*2)+(6*1)+(5*9)+(4*1)+(3*4)+(2*6)+(1*9)=143
143 % 10 = 3
So 1421914-69-3 is a valid CAS Registry Number.

1421914-69-3Downstream Products

1421914-69-3Relevant academic research and scientific papers

Site-selective mono-oxidative addition of active zinc into carbon-bromine bond of dibrominated-thiophenes: Preparation of thienylzinc reagents and their applications

Jung, Hye-Soo,Cho, Hyun-Hee,Kim, Seung-Hoi

, p. 960 - 964 (2013/02/25)

A facile protocol for the preparation of 3-bromo-2-thienylzinc bromide A and 5-bromo-2-thienylzinc bromide B has been developed. It has been successfully accomplished by a site-selective oxidative addition of active zinc into a chemically pseudo-equivalent or equivalent carbon-bromine bond, respectively. The subsequent cross-coupling reactions of the organozincs were also successfully carried out under mild conditions providing the corresponding products in moderate to high yields.

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