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171194-77-7

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171194-77-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171194-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,1,9 and 4 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 171194-77:
(8*1)+(7*7)+(6*1)+(5*1)+(4*9)+(3*4)+(2*7)+(1*7)=137
137 % 10 = 7
So 171194-77-7 is a valid CAS Registry Number.

171194-77-7Relevant articles and documents

Biocatalytic racemization of synthetically important functionalized α-hydroxyketones using microbial cells

Nestl, Bettina M.,Bodlenner, Anne,Stuermer, Rainer,Hauer, Bernhard,Kroutil, Wolfgang,Faber, Kurt

, p. 1465 - 1474 (2007)

Biocatalytic racemization of straight-chain and cyclic acyloins bearing (halo)alkyl, alkenyl and functionalized (hetero)aryl moieties was accomplished using whole resting cells of bacteria, fungi and yeasts. Mild physiological reaction conditions ensured the suppression of undesired side-reactions, such as elimination or condensation. This biocatalytic protocol represents a useful tool for the clean racemization of unwanted enantiomers of synthetically important α-hydroxyketones derived from kinetic resolution.

The enantiomers of Iralia: preparation and odour evaluation

Abate, Agnese,Brenna, Elisabetta,Fuganti, Claudio,Malpezzi, Luciana,Serra, Stefano

, p. 1145 - 1153 (2008/02/10)

The enantiomers of methyl ionones 1 and 2 were prepared by an enzyme-catalysed approach. Their odour properties were evaluated by skilful perfumers.

On 1,4-Diastereoselectivity in the Aldol Condensation of Methyl Ketones

Trost, Barry M.,Urabe, Hirokazu

, p. 3982 - 3983 (2007/10/02)

2-(Trimethylsiloxy)-3-RO-1-butene serves as practical and simple chiral enolate equivalent of a methyl ketone for asymmetric aldol condensations.

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