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117197-09-8

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117197-09-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117197-09-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,1,9 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 117197-09:
(8*1)+(7*1)+(6*7)+(5*1)+(4*9)+(3*7)+(2*0)+(1*9)=128
128 % 10 = 8
So 117197-09-8 is a valid CAS Registry Number.

117197-09-8Downstream Products

117197-09-8Relevant articles and documents

SYNTHESIS OF 20-IODOEICOSANOIK AND 20--IODOEICOSANOIK ACIDS

Protiva, Jiri,Pecka, Jaroslav,Urban, Jiri,Zima, Jiri

, p. 1546 - 1554 (2007/10/02)

20-Iodoeicosanoic acid (X) was prepared in 9 steps, its carbon cain being constructed from thiophene and ethyl ester chlorides of dodecanedioic and butanedioic acids.Isotope exchange afforded 20--iodoeicosanoic acid required for scintigraphic studies of the myocardium.Desulfuration of the thiophene precursor VIII was accompanied by formation of side products XI-XIX arising by cleavage of the thiophene C-C bonds.Desulfuration of the model compounds XX and XXI has shown that the formation of these products is general.

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