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99391-18-1

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99391-18-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99391-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,3,9 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99391-18:
(7*9)+(6*9)+(5*3)+(4*9)+(3*1)+(2*1)+(1*8)=181
181 % 10 = 1
So 99391-18-1 is a valid CAS Registry Number.

99391-18-1Relevant articles and documents

Silylation of bicyclic six-membered nitronates. Ring-chain tautomerism of intermediate N,N bis(oxy)iminium cations

Smirnov,Khomutova,Tishkov,Ioffe

, p. 2061 - 2070 (2007/10/03)

Silylation of bicyclic six-membered nitronates was studied as a possible route to conjugated enoximes with a distant carbonyl group. Apart from the target enoximes, this reaction yielded nitro compounds. The ratio of these two types of products and the co

Reversed Stereochemical Course of the Michael Addition of Cyclohexanone to β-nitrostyrenes by Using 1-(Trimethylsiloxy)cyclohexene/Dichloro(diisopropoxy)titanium

Seebach, Dieter,Brook, Michael A.

, p. 319 - 324 (2007/10/02)

Induced by a stoichiometric excess of dichloro(diisopropoxy)titanium, 1-(trimethylsiloxy)cyclohexene and p-substituted β-nitrostyrenes (Y=H, CH3, CH3O, CN) combine in CH2Cl2 solution at -90 deg preferentially with relative topicity ul - opposite to the co

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