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1040283-42-8

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1040283-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1040283-42-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,2,8 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1040283-42:
(9*1)+(8*0)+(7*4)+(6*0)+(5*2)+(4*8)+(3*3)+(2*4)+(1*2)=98
98 % 10 = 8
So 1040283-42-8 is a valid CAS Registry Number.

1040283-42-8Downstream Products

1040283-42-8Relevant articles and documents

Synthesis of (Z)-2-[(Z)-3-alkylideneisobenzofuran-1(3H)-ylidene]acetic acid derivatives by sequential coupling-cyclization between 3-(2-iodophenyl)-3- oxopropanoic acid derivatives and terminal alkynes

Kobayashi, Kazuhiro,Hashimoto, Kenichi,Fukamachi, Shuhei,Konishi, Hisatoshi

, p. 1094 - 1098 (2008/12/22)

3-(2-Iodophenyl)-3-oxopropanoic acid derivatives reacted efficiently with various terminal alkynes in the presence of catalytic amounts of dichlorobis(triphenylphosphine)palladium and copper(I) iodide and two molar amounts of triethylamine in N,N-dimethyl

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