Cas 1290622-27-3,4-nitro-3,5-di(4-fluorophenyl) cyclohexanone

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Check Digit Verification of cas no

The CAS Registry Mumber 1290622-27-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,0,6,2 and 2 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1290622-27:
(9*1)+(8*2)+(7*9)+(6*0)+(5*6)+(4*2)+(3*2)+(2*2)+(1*7)=143
143 % 10 = 3
So 1290622-27-3 is a valid CAS Registry Number.

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1290622-27-3Relevant articles and documents

Efficient synthesis of optically active 4-nitro-cyclohexanones via bifunctional thiourea-base catalyzed double-Michael addition of nitromethane to dienones

Wu, Bin,Liu, Guo-Gui,Li, Mei-Qiu,Zhang, Yong,Zhang, Shao-Yun,Qiu, Jun-Ru,Xu, Xiao-Ping,Ji, Shun-Jun,Wang, Xing-Wang

supporting information; experimental part, p. 3992 - 3994 (2011/05/12)

Thiourea-modified cinchona alkaloids as bifunctional catalysts and a base could catalyze a stepwise [5+1] cyclization of divinyl ketones with nitromethane via double Michael additions, furnishing optically active 4-nitro- cyclohexanones with good yields,

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1290622-27-3