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131613-80-4

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131613-80-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131613-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,1 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 131613-80:
(8*1)+(7*3)+(6*1)+(5*6)+(4*1)+(3*3)+(2*8)+(1*0)=94
94 % 10 = 4
So 131613-80-4 is a valid CAS Registry Number.

131613-80-4Downstream Products

131613-80-4Relevant articles and documents

Aldotetroses and C(3)-Modified Aldohexoses as Substrates for N-Acetylneuraminic Acid Aldolase: A Model for the Explanation of the Normal and the Inversed Stereoselectivity

Fitz, Wolfgang,Schwark, Jan-Robert,Wong, Chi-Huey

, p. 3663 - 3670 (2007/10/02)

The four stereoisomeric aldotetroses were accepted with different reactivities by N-acetylneuraminic acid aldolase.C(3)-modified D-mannose and D-glucose derivatives, respectively, failed to undergo enzymatic aldol addition.Based on the observed reactivities of the tested compounds (about 58), a mechanistic scheme is proposed which relates substrate structure, reactivity and stereochemical outcome observed in Neu5Ac aldolase-catalyzed reactions.The condensation products obtained in the L-erythrose and D-threose reactions are side-chain modified sialic acid and D-KDO derivatives, respectively, of biological interest.

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