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1242097-49-9

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1242097-49-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1242097-49-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,0,9 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1242097-49:
(9*1)+(8*2)+(7*4)+(6*2)+(5*0)+(4*9)+(3*7)+(2*4)+(1*9)=139
139 % 10 = 9
So 1242097-49-9 is a valid CAS Registry Number.

1242097-49-9Downstream Products

1242097-49-9Relevant articles and documents

Convergent synthesis of trisubstituted Z -allylic esters by wittig-schlosser reaction

Hodgson, David M.,Arif, Tanzeel

supporting information; experimental part, p. 4204 - 4207 (2010/12/24)

β-Lithiooxyphosphonium ylides, generated in situ from aldehydes and Wittig reagents, react readily with halomethyl esters to form trisubstituted Z-allylic esters. The methodology was applied to a total synthesis of the geranylgeraniol-derived diterpene (6S,7R,Z)-7-hydroxy-2-((E)-6-hydroxy-4- methylhex-4-enylidene)-6,10-dimethylundec-9-enyl acetate (12).

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