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181222-31-1

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181222-31-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181222-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,2,2 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 181222-31:
(8*1)+(7*8)+(6*1)+(5*2)+(4*2)+(3*2)+(2*3)+(1*1)=101
101 % 10 = 1
So 181222-31-1 is a valid CAS Registry Number.

181222-31-1Downstream Products

181222-31-1Relevant articles and documents

Hypervalent iodine(III)-induced intramolecular cyclization reaction of substituted phenol ethers with an alkyl azido side-chain: A novel and efficient synthesis of quinone imine derivatives

Kita, Yasuyuki,Egi, Masahiro,Ohtsubo, Makoto,Saiki, Toyokazu,Okajima, Akiko,Takada, Takeshi,Tohma, Hirofumi

, p. 241 - 245 (2007/10/03)

Novel and efficient syntheses of quinone imine ketals (2aj) and quinone imines (4ah) from substituted phenol ethers (1ak) bearing an alkyl azido side-chain using the combination of hypervalent iodine(III) reagent, phenyliodine(III) bis(trifluoroacetate) (PIFA) and trimethylsilyl trifluoromethanesulfonate (TMSOTf), have been developed.

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