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117437-02-2

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117437-02-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117437-02-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,4,3 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117437-02:
(8*1)+(7*1)+(6*7)+(5*4)+(4*3)+(3*7)+(2*0)+(1*2)=112
112 % 10 = 2
So 117437-02-2 is a valid CAS Registry Number.

117437-02-2Downstream Products

117437-02-2Relevant articles and documents

Synthesis and Characterization of a New Class of Flavylium Salts; a Facile Route to the 2-(2-Acetoxyphenyl)-4-methylidene-4H-1-benzopyran Derivatives. X-Ray Crystal Structure of 2-(2-Acetoxy-5-methylphenyl)-4,6-dimethyl-1-benzopyranylium Pentachlorostannate: Supporting Evidence of Chl...

Jolibois, Henri,Theobald, Francois,Vebrel, Joel,Guyetant, Rene

, p. 812 - 817 (2007/10/02)

Several mixtures of compounds 1 and 2 were synthesized from SnCl4 and p-substituted aryl acetates.Separation of 1/2 was achieved either by treatment of the mixture with MeCN prviding the pure complex 1 or by reaction with MeCOCl leading selectively to a new class of flavylium salts 3 or 4.The structure of 2-(2-acetoxy-5-methylphenyl)-4,6-dimethyl-1-benzopyranylium pentachlorostannate (3a) was determined by single-crystal X-ray diffraction.The Sn-atoms are hexacoordinated in the dimeric unit Sn2Cl102- through Cl bridging.Furthermore, we report the easy preparation of 1-benzopyran derivatives starting from the salts 3.

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