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166540-14-3

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166540-14-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 166540-14-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,5,4 and 0 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 166540-14:
(8*1)+(7*6)+(6*6)+(5*5)+(4*4)+(3*0)+(2*1)+(1*4)=133
133 % 10 = 3
So 166540-14-3 is a valid CAS Registry Number.

166540-14-3Downstream Products

166540-14-3Relevant articles and documents

Stereochemistry of 2-Methyl- and 2-Phenyl-2-adamantyl Cations

Herrmann, Roland,Kirmse, Wolfgang

, p. 699 - 702 (2007/10/02)

When both diastereomers of -2-methyl-2-adamantyl 2,4-dinitrophenolate (18a) and -2-phenyl-2-adamantyl 2,4-dinitrophenolate (18b) were solvolyzed in 40percent aqueous acetone, 1:1 mixtures of (E)- and (Z)--2-R-adamantan-2-ols (19a, b) were obtained.The stereoselectivity of secondary 2-adamantyl cations, attributed to ? participation, is effectively suppressed by charge-stabilizing groups at C-2. - Key Words: Solvolysis / ? Participation / 5-D-2-Adamantyl derivatives

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