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128497-05-2

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128497-05-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128497-05-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,4,9 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128497-05:
(8*1)+(7*2)+(6*8)+(5*4)+(4*9)+(3*7)+(2*0)+(1*5)=152
152 % 10 = 2
So 128497-05-2 is a valid CAS Registry Number.

128497-05-2Relevant articles and documents

Use of 2,3-Dibromo-1-(phenylsulfonyl)-1-propene as a Reagent for the Synthesis of Annulated Furans

Padwa, Albert,Murphree, S. Shaun,Yeske, Philip E.

, p. 4241 - 4242 (2007/10/02)

Treatment of 2,3-dibromo-1-(phenylsulfonyl)-1-propene with various β-dicarbonyl compounds in the presence of sodium methoxide affords 2,4-disubstituted and 2,3-fused bicyclic furans in high yield.Formation of the furan ring involves a sequence of addition

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