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1438403-25-8

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1438403-25-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1438403-25-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,8,4,0 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1438403-25:
(9*1)+(8*4)+(7*3)+(6*8)+(5*4)+(4*0)+(3*3)+(2*2)+(1*5)=148
148 % 10 = 8
So 1438403-25-8 is a valid CAS Registry Number.

1438403-25-8Downstream Products

1438403-25-8Relevant articles and documents

Copper-catalyzed asymmetric 1,4-conjugate addition of Grignard reagents to linear α,β,γ,δ-unsaturated ketones

Ma, Zhenni,Xie, Fang,Yu, Han,Zhang, Yiren,Wu, Xiaoting,Zhang, Wanbin

, p. 5292 - 5294 (2013/06/27)

A highly regioselective and enantioselective copper-catalyzed 1,4-conjugate addition of Grignard reagents to linear α,β,γ,δ- unsaturated ketones was developed. The 1,4-addition products were obtained regioselectively in high yields with up to 98% ee. The Royal Society of Chemistry 2013.

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