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1217867-34-9

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1217867-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1217867-34-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,8,6 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1217867-34:
(9*1)+(8*2)+(7*1)+(6*7)+(5*8)+(4*6)+(3*7)+(2*3)+(1*4)=169
169 % 10 = 9
So 1217867-34-9 is a valid CAS Registry Number.

1217867-34-9Downstream Products

1217867-34-9Relevant academic research and scientific papers

Phase-transfer catalyzed asymmetric conjugate additions of β-ketoesters to acetylenic ketones

Lan, Quan,Wang, Xisheng,Shirakawa, Seiji,Maruoka, Keiji

, p. 684 - 686 (2010)

Asymmetric conjugate addition of cyclic β-keto esters to acetylenic ketones has been achieved with high enantioselectivity and moderate E/Z selectivity under the influence of a binaphthyl-modified 3,5-bis[3,5- bis(trifluoromethyl)phenyl]phenyl-substituted phase-transfer catalyst.

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