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267890-17-5

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267890-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 267890-17-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,7,8,9 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 267890-17:
(8*2)+(7*6)+(6*7)+(5*8)+(4*9)+(3*0)+(2*1)+(1*7)=185
185 % 10 = 5
So 267890-17-5 is a valid CAS Registry Number.

267890-17-5Downstream Products

267890-17-5Relevant articles and documents

A highly regio- And stereoselective synthesis of (Z)-3-arylidene-2,3-dihydro-5H-1,4-benzodioxepin-5-ones and (Z)-3-arylidene1,2,3,5-tetrahydro-4,1-benzoxazepin-5-ones through palladium-copper catalysis

Chaudhuri, Gopeswar,Kundu, Nitya G.

, p. 775 - 779 (2007/10/03)

Sodium 2-(prop-2′-ynyloxy)benzoate 1a reacted with the aryl iodides 2-10 in the presence of bis(triphenylphosphine)palladium(II) chloride, cuprous iodide and triethylamine in CH3CN-DMF to yield the disubstituted alkynes 11-19 in good yields (48

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