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72875-44-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72875-44-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,7 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 72875-44:
(7*7)+(6*2)+(5*8)+(4*7)+(3*5)+(2*4)+(1*4)=156
156 % 10 = 6
So 72875-44-6 is a valid CAS Registry Number.

72875-44-6Relevant articles and documents

Mo (CO)6-assisted Pd-supported magnetic graphene oxide-catalyzed carbonylation-cyclization as an efficient way for the synthesis of 4(3H)-quinazolinones

Bahadorikhalili, Saeed,Ansari, Samira,Hamedifar, Haleh,Ma'mani, Leila,Babaei, Mohsen,Eqra, Rahim,Mahdavi, Mohammad

, (2019/02/14)

In this paper, a novel catalyst is introduced based on the immobilization of palladium on modified magnetic graphene oxide nanoparticles. The catalyst is characterized by several methods, including transmission electron microscopy, scanning electron microscopy, X-ray fluorescence, vibrating-sample magnetometer, Fourier transform-infrared and dynamic light scattering (DLS) analysis. The activity of the catalyst was investigated in the synthesis of 4(3H)-quinazolinones via Pd-catalyzed carbonylation-cyclization of N-(2-bromoaryl) benzimidamides by Mo (CO)6. The Mo (CO)6 is used as a carbon monoxide source for performing the reaction under mild conditions. The catalyst showed good reusability, and no change in activity was observed after 10?cycles of recovery.

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