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211806-47-2

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211806-47-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 211806-47-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,8,0 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 211806-47:
(8*2)+(7*1)+(6*1)+(5*8)+(4*0)+(3*6)+(2*4)+(1*7)=102
102 % 10 = 2
So 211806-47-2 is a valid CAS Registry Number.

211806-47-2Downstream Products

211806-47-2Relevant articles and documents

The synthesis of novel organogermanium compounds containing phosphonic esters by Mannich-type reaction

Zhang, Zhongbiao,He, Dayong,Chen, Ruyu

, p. 273 - 281 (2007/10/03)

A new kind of Mannich-type reaction involving an intramolecular catalysis mechanism was applied for the synthesis of α-aminogermyl phosphonic esters. It was found that the carbonyl group was activated by the coordination between the oxygen atom and the germanium atom. Different amines were investigated under the same reaction conditions. The structures of the products were determined by 1H, 31P NMR, IR spectra, and elemental analysis.

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