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134444-40-9

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134444-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134444-40-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,4,4 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 134444-40:
(8*1)+(7*3)+(6*4)+(5*4)+(4*4)+(3*4)+(2*4)+(1*0)=109
109 % 10 = 9
So 134444-40-9 is a valid CAS Registry Number.

134444-40-9Downstream Products

134444-40-9Relevant academic research and scientific papers

Phase Transfer Pd(0) Catalyzed Polymerization Reactions. 5. Synthesis and Thermal Characterization of 1,2-(4,4'-di(S(-)-2-methylbutyloxy)phenyl)acetylene and 1-(4-n-alkoxyphenyl)-2-(4'-(S(-)-2-methylbutyloxy)phenyl)acetylene Monomers

Pugh, C.,Taernstroem, C.,Percec, V.

, p. 185 - 197 (2007/10/02)

1,2-(4,4'-Di(S(-)-2-methylbutyloxy)phenyl)acetylene and 1-(4-n-alkoxyphenyl)-2-(4'-(S(-)-2-methylbutyloxy)phenyl)acetylene monomers were prepared by a one pot phase transfer Pd(0)/Cu(I) catalyzed three step coupling of the appropriate aryl halides with 2-

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