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134440-18-9

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134440-18-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134440-18-9 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 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 134440-18:
(8*1)+(7*3)+(6*4)+(5*4)+(4*4)+(3*0)+(2*1)+(1*8)=99
99 % 10 = 9
So 134440-18-9 is a valid CAS Registry Number.

134440-18-9Downstream Products

134440-18-9Relevant academic research and scientific papers

Synthesis of Fluoro-diacetylene Monomers: 1,4-Bis(2,4,6-Triaryloxy-difluorophenyl) Butadiynes

Zhang, Yadond,Wen, Jianxun

, p. 433 - 437 (1991)

New fluoro-diacetylenes, 1,4-Bis(2,4,6-triaryloxy-difluorophenyl)butadiynes, were prepared by nucleophilic substitution reactions on 1,4-bis(pentafluorophenyl)butadiyne, using large excesses of nucleophiles, ArOH, in DMF at room temperature and K2CO3 as b

New soluble poly(fluoro-diacetylene)s with a large ?-conjugation system

Zhang, YaDong,Wen, JianXun

, p. 115 - 118 (2007/10/02)

New soluble poly(fluoro-diacetylene)s with fluoro-aromatic rings directly bound to an extended ?-conjugated backbone have been generated via solid-state polymerization induced by thermal annealing.The large ?-conjugated backbones of these soluble poly(flu

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