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74568-03-9

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74568-03-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74568-03-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,6 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74568-03:
(7*7)+(6*4)+(5*5)+(4*6)+(3*8)+(2*0)+(1*3)=149
149 % 10 = 9
So 74568-03-9 is a valid CAS Registry Number.

74568-03-9Relevant articles and documents

ENZYMATIC RESOLUTION OF RACEMIC LACTONES

Blanco, L.,Guibe-Jampel, E.,Rousseau, G.

, p. 1915 - 1918 (1988)

PPL, HLE or PLE enzymatic resolution of racemic γ, δ and ε-lactones gives optically active lactones (ee: 60 to 90percent).

SOME (E)-1,4-ALKADIENE DERIVATIVES AND THE SYNTHESIS OF 5-(3E,6-HEPTADIENYL)DIHYDRO-2(3H)-FURANONE

Voaden, Denys J.

, p. 53 - 64 (2007/10/02)

From 2-allyl-3-chlorotetrahydropyran, (E)-4,7-octadien-1-ol and (E)-4,7-octadienal were obtained.The aldehyde was conjugated with ethyl acrylate to give a γ-keto ester from which 5-(3E,6-heptadienyl)dihydro-2(3H)-furanone was prepared. 4-Oxo- and 4-hydroxy-derivatives of decanoic and undecanoic acids are discussed.

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