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130340-57-7

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130340-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130340-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,3,4 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 130340-57:
(8*1)+(7*3)+(6*0)+(5*3)+(4*4)+(3*0)+(2*5)+(1*7)=77
77 % 10 = 7
So 130340-57-7 is a valid CAS Registry Number.

130340-57-7Downstream Products

130340-57-7Relevant 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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