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136579-82-3

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136579-82-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136579-82-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,5,7 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 136579-82:
(8*1)+(7*3)+(6*6)+(5*5)+(4*7)+(3*9)+(2*8)+(1*2)=163
163 % 10 = 3
So 136579-82-3 is a valid CAS Registry Number.

136579-82-3Relevant articles and documents

Photosensitized oxidation of furans; part 17: A simple method for the synthesis of 5-hydroperoxyfuran-2(5H)-ones

Iesce,Cermola,Graziano,Scarpati

, p. 944 - 948 (2007/10/02)

The 5-hydroperoxyfuran-2(5H)-ones 3 are synthesized by acid hydrolysis of the dihydrofurans 1 which are prepared in one-pot procedure by reaction of the corresponding furans 4 with singlet oxygen and methanol. The synthetic method has a wide range of applicability; however, compounds 3 unsubstituted at C-4 cannot be prepared since the corresponding dihydrofurans 1 are not formed.

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