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250328-14-4

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250328-14-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 250328-14-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,3,2 and 8 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 250328-14:
(8*2)+(7*5)+(6*0)+(5*3)+(4*2)+(3*8)+(2*1)+(1*4)=104
104 % 10 = 4
So 250328-14-4 is a valid CAS Registry Number.

250328-14-4Relevant articles and documents

A convergent and highly efficient synthesis of (E,Z)-2,13-octadecadienyl acetate and (E,Z)-3,13-octadecadienyl acetate, components of the sex pheromone of the Leopard Moth Zeuzera pyrina, through sulfones

Capdevila, Anna,Prasad, Attaluri R.,Quero, Carmen,Petschen, Ine?s,Bosch, Maria P.,Guerrero, Angel

, p. 845 - 848 (2008/02/09)

(equation presented) A new, convergent synthesis of (E,Z)-2,13-octadecadienyl acetate (1) and (E,Z)-3,13-octadecadienyl acetate (2), the two key components of the leopard moth Zeuzera pyrina, from 2-chloromethyltetrahydrofuran in good overall yields and stereomeric purity is reported. The synthesis of both components utilizes the common intermediate sulfone 12 as a convenient building block to be coupled with iodoacetylenic derivatives 9 or 17 in the key step.

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