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105658-71-7

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105658-71-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 105658-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,6,5 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 105658-71:
(8*1)+(7*0)+(6*5)+(5*6)+(4*5)+(3*8)+(2*7)+(1*1)=127
127 % 10 = 7
So 105658-71-7 is a valid CAS Registry Number.

105658-71-7Upstream product

105658-71-7Downstream Products

105658-71-7Relevant academic research and scientific papers

Optically transparent sulfur-containing semi-alicyclic polyimide with high refractive index

Nakagawa, Yu,Ogura, Tomohito,Higashihara, Tomoya,Ueda, Mitsuru

, p. 392 - 393 (2010)

Sulfur-containing semi-alicyclic polyimides (PIs) with high refractive indices up to 1.7272 at 632.8 nm have been prepared by the Michael polyaddition of sulfur-containing bismaleimides (SBMIs) with 4, 4'-thiobis(benzenethiol) (TBT). These PIs also showed high transparency in the visible region, low birefrin-gence (Δn), and a high glass transition temperature.

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