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107821-25-0

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107821-25-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107821-25-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,8,2 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 107821-25:
(8*1)+(7*0)+(6*7)+(5*8)+(4*2)+(3*1)+(2*2)+(1*5)=110
110 % 10 = 0
So 107821-25-0 is a valid CAS Registry Number.

107821-25-0Downstream Products

107821-25-0Relevant articles and documents

A unique pathway to platform chemicals: Aldaric acids as stable intermediates for the synthesis of furandicarboxylic acid esters

Van Strien, Nicolaas,Rautiainen, Sari,Asikainen, Martta,Thomas, David A.,Linnekoski, Juha,Niemel?, Klaus,Harlin, Ali

, p. 8271 - 8277 (2020)

2,5-Furandicarboxylic acid (FDCA) has received attention as an emerging bio-based building block with many applications, especially in renewable polyesters. The common route to FDCA uses the unstable 5-hydroxymethylfurfural (HMF) as an intermediate. Here, we present an alternative route to FDCA and its esters using C6 aldaric acids as stable intermediates. Aldaric acids, or sugar diacids, can be obtained by the oxidation of C6 sugars or uronic acids from pectin. Subsequent dehydration of aldaric acids by solid acid catalysts in butanol produces furancarboxylates. Using silica-supported acid catalysts, over 90% yields of furancarboxylates were achieved with the selectivity to FDCA and its esters reaching 80%.

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