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17111-16-9

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17111-16-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17111-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,1 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 17111-16:
(7*1)+(6*7)+(5*1)+(4*1)+(3*1)+(2*1)+(1*6)=69
69 % 10 = 9
So 17111-16-9 is a valid CAS Registry Number.

17111-16-9Upstream product

17111-16-9Downstream Products

17111-16-9Relevant articles and documents

A novel and efficient synthesis of tocopheryl quinones by homogeneous and heterogeneous methyltrioxorhenium/hydrogen peroxide catalytic systems

Saladino, Raffaele,Neri, Veronica,Farina, Angela,Crestini, Claudia,Nencioni, Lucia,Palamara, Anna Teresa

, p. 321 - 331 (2008)

A convenient and efficient application of heterogeneous poly(4-vinylpyridine), poly(4-vinyl-pyridine N-oxide), and polystyrene/ methylrhenium trioxide systems for the selective oxidation of tocopherols and tocopherol derivatives to the corresponding ortho- and para-tocopherylquinones is described. Environment friendly, easily available, and low-cost hydrogen peroxide (H2O2) was used as the oxygen atom donor. The antiviral activity of the newly synthesized tocopherylquinones and their parent tocopherols against influenza A virus is also reported. On the basis of the biological assay, the activity of tocopherols against influenza virus is higher than that showed by the corresponding tocopherylquinones, thus suggesting, for the first time, a drawback effect of the oxidative metabolism on the antiviral activity of these compounds.

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