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67199-65-9

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67199-65-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67199-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,1,9 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 67199-65:
(7*6)+(6*7)+(5*1)+(4*9)+(3*9)+(2*6)+(1*5)=169
169 % 10 = 9
So 67199-65-9 is a valid CAS Registry Number.

67199-65-9Relevant articles and documents

Base-Promoted Synthesis of 2-Aryl Quinazolines from 2-Aminobenzylamines in Water

Chatterjee, Tanmay,Kim, Dong In,Cho, Eun Jin

, p. 7423 - 7430 (2018/07/29)

A transition-metal-free procedure for the synthesis of a highly valuable class of heteroaromatics, quinazolines, was developed by using easily available 2-aminobenzylamines and α,α,α-trihalotoluenes. The transformation proceeded smoothly in the presence of only sodium hydroxide and molecular oxygen in water at 100 °C, furnishing a variety of 2-aryl quinazolines. The crystallization process of the crude reaction mixture for the purification of the solid products circumvents huge solvent-consuming workup and column chromatographic techniques, which make the overall process more sustainable and economical.

Pyrrolidine(thi)ones Substituted by Heterocyclic Substituents in The 3-Position

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Page/Page column 16, (2009/01/20)

Pyrrolidine(thi)one compounds substituted by heterocyclic substituents in the 3-position, their preparation and use in pharmaceutical compositions, in particular as immunomodulators for treatment and/or inhibition of inflammatory and autoimmune diseases and haematological-oncological diseases.

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