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60444-13-5

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60444-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 60444-13-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,0,4,4 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 60444-13:
(7*6)+(6*0)+(5*4)+(4*4)+(3*4)+(2*1)+(1*3)=95
95 % 10 = 5
So 60444-13-5 is a valid CAS Registry Number.

60444-13-5Downstream Products

60444-13-5Relevant articles and documents

Method for preparing N-aryl pyrrole compound

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Paragraph 0021; 0056; 0058, (2020/09/09)

The present invention relates to a method for preparing an N-aryl pyrrole compound. Furan containing different substituents, aromatic amine containing different substituents and a solid Lewis acid catalyst are mixed and placed in a closed reactor, and an N-aryl pyrrole compound with different substituents is prepared under certain catalytic conditions. The reaction temperature of the catalytic reaction condition is 140-210 DEG C. The solid Lewis acid catalyst is prepared by a sol-gel method, Hf is used as a core metal element, and a mesoporous molecular sieve SBA-15 is used as a carrier. According to the method, the catalyst is simple to prepare, low in cost, high in reaction activity, good in water resistance and structural stability and high in catalytic reaction yield; meanwhile, the Lewis acid type catalyst does not generate acid protons, the corrosion of the catalyst to equipment at high temperature is avoided, the post-reaction treatment is convenient, and the catalyst is renewable and environment-friendly.

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