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72398-91-5

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72398-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72398-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,3,9 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 72398-91:
(7*7)+(6*2)+(5*3)+(4*9)+(3*8)+(2*9)+(1*1)=155
155 % 10 = 5
So 72398-91-5 is a valid CAS Registry Number.

72398-91-5Downstream Products

72398-91-5Relevant articles and documents

A facile two-step synthesis of 2-arylbenzofurans based on the selective cross McMurry couplings

Duan, Xin-Fang,Zeng, Jing,Zhang, Zhan-Bin,Zi, Guo-Fu

, p. 10283 - 10286 (2007)

(Chemical Equation Presented) A novel two-step synthesis of 2-arylbenzofurans has been developed. It involves a selective cross McMurry coupling of a salicylaldehyde or substituted salicylaldehyde with an aromatic aldehyde and a sequential oxidative cyclization of the resulting ortho-vinylphenols. Utilizing this synthetic protocol, a variety of 2-arylbenzofurans including cicerfuran (5) have been efficiently synthesized.

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