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380340-95-4

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380340-95-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 380340-95-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,0,3,4 and 0 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 380340-95:
(8*3)+(7*8)+(6*0)+(5*3)+(4*4)+(3*0)+(2*9)+(1*5)=134
134 % 10 = 4
So 380340-95-4 is a valid CAS Registry Number.

380340-95-4Upstream product

380340-95-4Relevant articles and documents

Copper-mediated synthesis of substituted 2-aryl-N-benzylbenzimidazoles and 2-arylbenzoxazoles via C-H functionalization/C-N/C-O bond formation

Guru, Murali Mohan,Ali, Md Ashif,Punniyamurthy, Tharmalingam

, p. 5295 - 5308 (2011)

An efficient method for the transformation of N-benzyl bisarylhydrazones and bisaryloxime ethers to functionalized 2-aryl-N-benzylbenzimidazoles and 2-arylbenzoxazoles is described. The protocol involves a copper(II)-mediated cascade C-H functionalization/C-N/C-O bond formation under neutral conditions. Substrates having either electron-donating or -withdrawing substituents undergo the cyclization to afford the target heterocycles at moderate temperature.

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