Cas 100649-43-2,9-(2,6-dimethoxyphenyl)-1,8-dimethoxyxanthene

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Check Digit Verification of cas no

The CAS Registry Mumber 100649-43-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,6,4 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 100649-43:
(8*1)+(7*0)+(6*0)+(5*6)+(4*4)+(3*9)+(2*4)+(1*3)=92
92 % 10 = 2
So 100649-43-2 is a valid CAS Registry Number.

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100649-43-2Relevant academic research and scientific papers

The Reduction of Triarylcarbenium Ions by n-Nucleophiles. The Operation of the Intramolecular Version of the Olah-Svoboda Mechanism in the Reductive Cyclization of the Tris-(2,6-dimethoxyphenyl)carbenium Ion

Huszthy, Peter,Lempert, Karoly,Simig, Gyula

, p. 1351 - 1354 (2007/10/02)

Refluxing of tris-(2,6-dimethoxyphenyl)carbenium hydrogen dichloride (2b)*2H2O with chloroform furnished 9-(2,6-dimethoxyphenyl)-1,8-dimethoxyxanthene (11).This cyclization process with concomitant hydride transfer to the central carbon atom is rationaliz

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