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161115-05-5

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161115-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161115-05-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,1,1 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 161115-05:
(8*1)+(7*6)+(6*1)+(5*1)+(4*1)+(3*5)+(2*0)+(1*5)=85
85 % 10 = 5
So 161115-05-5 is a valid CAS Registry Number.

161115-05-5Downstream Products

161115-05-5Relevant articles and documents

Synthesis of 2,3,5-Trisubstituted Furans by the Acid-Catalyzed Decomposition of 1,2-Dioxan-3-ols

Qian, Chang-Yi,Hirose, Jun-ichi,Nishino, Hiroshi,Kurosawa, Kazu

, p. 1219 - 1228 (2007/10/02)

Thirteen new 2,3,5-trisubstituted furans were prepared by the acid-catalyzed decomposition of 6,6-disubstituted 1,2-dioxan-3-ols in 57-93percent yields.The reaction could be accounted for as the consequence of an oxygen-oxygen bond cleavage by acid and the migration of a phenyl group at the C-6 position followed by cyclization and elimination of a phenol.The migratory aptitude was in the order of 4-MeOC6H4- greater than 4-MeO6H4- greater than Ph- = 4-FC6H4- greater than 4-ClC6H4- = 4-BrC6H4- that was found from the competitive phenyl migration in the reaction of 1,2-dioxan-3-ols bearing two different substituents at the C-6 position.

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