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1166916-61-5

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1166916-61-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1166916-61-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,6,9,1 and 6 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1166916-61:
(9*1)+(8*1)+(7*6)+(6*6)+(5*9)+(4*1)+(3*6)+(2*6)+(1*1)=175
175 % 10 = 5
So 1166916-61-5 is a valid CAS Registry Number.

1166916-61-5Downstream Products

1166916-61-5Relevant articles and documents

Chemoenzymatic synthesis of rivastigmine based on lipase-catalyzed processes

Mangas-Sanchez, Juan,Rodriguez-Mata, Maria,Busto, Eduardo,Gotor-Fernandez, Vicente,Gotor, Vicente

, p. 5304 - 5310 (2009)

(Chemical Equation Presented) A straightforward chemoenzymatic synthesis of enantiomerically pure rivastigmine has been efficiently carried out under mild reaction conditions, with Candida antarctica lipase B responsible for the stereoselective acetylation of the corresponding (R)-alcohol or amine. An exhaustive enzymatic study has been developed exploring the possibilities of carry out enzyme recycling, scaling up the enzymatic process and development of a dynamic kinetic resolution procedure for the production of adequate enantiomerically pure precursors of rivastigmine. Total chemoenzymatic synthesis of this pharmaceutical has been performed in good overall yield from commercially available 3-methoxyacetophenone.

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