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188546-71-6

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188546-71-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188546-71-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,5,4 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 188546-71:
(8*1)+(7*8)+(6*8)+(5*5)+(4*4)+(3*6)+(2*7)+(1*1)=186
186 % 10 = 6
So 188546-71-6 is a valid CAS Registry Number.

188546-71-6Relevant articles and documents

Lithiated dimethoxymethyl diphenyl phosphine oxide, a versatile formiate carbanion equivalent

Monenschein, Holger,Brünjes, Marco,Kirschning, Andreas

, p. 525 - 527 (2007/10/03)

Aldehydes are homologated to the corresponding α-hydroxy methyl esters using lithiated dimethoxymethyl diphenyl phosphine oxide. The primary addition product of this Horner-Wittig process collapses to the corresponding α-hydroxy ester under proton-catalyzed conditions.

A New Asymmetric Formylation of Aldehydes

Kirschning, Andreas,Draeger, Gerald,Jung, Alexander

, p. 253 - 255 (2007/10/03)

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