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124028-83-7

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124028-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124028-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,0,2 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 124028-83:
(8*1)+(7*2)+(6*4)+(5*0)+(4*2)+(3*8)+(2*8)+(1*3)=97
97 % 10 = 7
So 124028-83-7 is a valid CAS Registry Number.

124028-83-7Relevant articles and documents

The Synthesis of Benzofuroquinolines. IV. Some Halobenzofuro- and quinoline Derivatives

Yamaguchi, Seiji,Tsuzuki, Kunihiro,Kinoshita, Minoru,Oh-hira, Yutaka,Kawase, Yoshiyuki

, p. 281 - 284 (2007/10/02)

Some 8- or 9-halobenzofuroquinolines (1a, 8-F, 8-Cl, 9-F, 9-Cl) and 9-halobenzofuroquinoline-11-carboxylic acid (1b, F, Cl) were synthesized from 6- or 7-halo-3-(2-methoxyphenyl)-2-oxo-1,2-dihydroquinoline-4-carboxylic acids (3).And, some 9-halo-11(6H)-benzofuroquinolinone (8, F, Cl, Br) and 2-halo-6(5H)-benzofuroquinolinone (9, F, Cl, Br) were synthesized from 6-halo-4-hydroxy-3-(2-methoxyphenyl)-2(1H)-quinolinone (7), and they were converted to the corresponding chlorohalobenzofuroquinolines (1c, 9-F, 9-Cl, 9-Br, and 2, F, Cl, Br).

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