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161551-51-5

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161551-51-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161551-51-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,5,5 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 161551-51:
(8*1)+(7*6)+(6*1)+(5*5)+(4*5)+(3*1)+(2*5)+(1*1)=115
115 % 10 = 5
So 161551-51-5 is a valid CAS Registry Number.

161551-51-5Relevant 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 (1994)

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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