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133494-56-1

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133494-56-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133494-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,4,9 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 133494-56:
(8*1)+(7*3)+(6*3)+(5*4)+(4*9)+(3*4)+(2*5)+(1*6)=131
131 % 10 = 1
So 133494-56-1 is a valid CAS Registry Number.

133494-56-1Relevant articles and documents

ENZYMATIC HYDROLYSIS OF CYCLOPROPANES. TOTAL SYNTHESIS OF OPTICALLY PURE DICTYOPTERENES A AND C'.

Grandjean, D.,Pale, P.,Chuche, J.

, p. 1215 - 1230 (2007/10/02)

Enzymatic hydrolysis of cis-1,2-bis(butyryloxymethyl)cyclopropane 3 under optimized conditions gives, in quantitative yield, optically pure cis-(1S,2R)-1-hydroxymethyl-2-butyryloxymethylcyclopropane 1.This compound is a versatile cyclopropane synthon as exemplified by the total synthesis of optically pure seaweed pheromones Dictyopterenes A and C'.

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