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131684-31-6

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131684-31-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131684-31-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,8 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131684-31:
(8*1)+(7*3)+(6*1)+(5*6)+(4*8)+(3*4)+(2*3)+(1*1)=116
116 % 10 = 6
So 131684-31-6 is a valid CAS Registry Number.

131684-31-6Downstream Products

131684-31-6Relevant articles and documents

Pteridines. 54. A Novel Synthetic Approach to C-6 Carbon Substituted Pterins via Intermolecular 1,3-Dipolar Cycloaddition Reactions

Taylor, Edward C.,Ray, Partha S.

, p. 1812 - 1816 (2007/10/02)

A number of 5-pyrazines and 6-pterins were converted to their respective nitrile oxides in the presence of dipolarophiles to give side-chain isoxazoles and isoxazolines as potential intermediates for the construction of multifunctional C-6 pterin substituents.

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