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70375-95-0

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70375-95-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70375-95-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,3,7 and 5 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 70375-95:
(7*7)+(6*0)+(5*3)+(4*7)+(3*5)+(2*9)+(1*5)=130
130 % 10 = 0
So 70375-95-0 is a valid CAS Registry Number.

70375-95-0Relevant articles and documents

Five-Membered 2,3-Dioxo Heterocycles: XLV. Thermolysis of 5-Aryl-4-phenyl-2,3-dihydrofuran-2,3-diones in the Absence of Other Partners and in the Presence of Carbonyl Compounds

Vostrov,Leont'eva,Tarasova,Maslivets

, p. 103 - 107 (2007/10/03)

Aroyl(phenyl)ketenes generated by thermolysis of 5-aryl-4-phenyl-2,3- dihydrofuran-2,3-diones undergo [4+2]-cyclodimerization to 3-aroyl-6-aryl-3,5- diphenyl-3,4-dihydro-2H-pyran-2,4-diones. Heating of the latter leads to rearrangement with formation of 4-aroyloxy-6-aryl-3,5-diphenyl-2H-pyran-2-ones. Thermolysis of 5-aryl-4-phenyl-2,3-dihydrofuran-2,3-diones in the presence of carbonyl compounds yields 6-aryl-5-phenyl-4H-1,3-dioxin-4-ones.

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