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1049477-49-7

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1049477-49-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1049477-49-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,9,4,7 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1049477-49:
(9*1)+(8*0)+(7*4)+(6*9)+(5*4)+(4*7)+(3*7)+(2*4)+(1*9)=177
177 % 10 = 7
So 1049477-49-7 is a valid CAS Registry Number.

1049477-49-7Relevant articles and documents

Synthesis of 3-benzazepines and azepino[4,5-b]heterocyclic ring systems via intramolecular Friedel-Crafts cyclization

Kargbo, Robert B.,Sajjadi-Hashemi, Zohreh,Roy, Sujata,Jin, Xiaomin,Herr, R. Jason

supporting information, p. 2018 - 2021 (2013/04/10)

The intramolecular Friedel-Crafts cyclization was found to be effective for the synthesis of 3-benzazepines and azepino[4,5-b]heterocyclic ring systems using simple allylic bromides tethered to activated aromatic nuclei. Amongst the various Lewis acids screened, Bi(OTf)3 was found to be the most effective 'ecofriendly' catalyst for the cyclization.

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