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117319-82-1

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117319-82-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117319-82-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,3,1 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117319-82:
(8*1)+(7*1)+(6*7)+(5*3)+(4*1)+(3*9)+(2*8)+(1*2)=121
121 % 10 = 1
So 117319-82-1 is a valid CAS Registry Number.

117319-82-1Downstream Products

117319-82-1Relevant articles and documents

Smooth Conversion of 3,4-Diarylcoumarins and 3,4,5-Triaryl-2(5H)-furanones to 2H-Chromene and 2,5-Dihydrofuran Derivatives with Dimethyl Sulfide-Borane Complex

Verma, Parul,Singh, Sangeeta,Dikshit, D. K.,Ray, Suprabhat

, p. 68 - 70 (2007/10/02)

Reaction of 3,4-diarylcoumarins (3,4-diaryl-2-oxo-2H-1-benzopyrans) and 3,4,5-triaryl-2(5H)-furanones with dimethyl sulfide-borane complex affords the corresponding 2H-chromenes (2H-1-benzopyrans) and 2,5-dihydrofurans in high yields. 3,4-Diaryl-2(5H)-fur

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