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209112-33-4

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209112-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 209112-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,1,1 and 2 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 209112-33:
(8*2)+(7*0)+(6*9)+(5*1)+(4*1)+(3*2)+(2*3)+(1*3)=94
94 % 10 = 4
So 209112-33-4 is a valid CAS Registry Number.

209112-33-4Relevant articles and documents

Water-compatible iminium activation: Organocatalytic Michael reactions of carbon-centered nucleophiles with enals

Palomo, Claudio,Landa, Aitor,Mielgo, Antonia,Oiarbide, Mikel,Puente, Angel,Vera, Silvia

, p. 8431 - 8435 (2008/09/19)

(Chemical Equation Presented) A pool of water-compatible catalysts, namely the chiral prolinol-based catalysts 1, has been developed for highly enantioselective C-C bond-forming Michael reactions in water (see scheme). The synthesis of (S)-Rolipram, a type IV phosphodiesterase inhibitor, was also demonstrated.

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