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1,2,4,5-Tetrakis-diisopropylsilanyl-benzene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

209977-66-2

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209977-66-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 209977-66-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,9,7 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 209977-66:
(8*2)+(7*0)+(6*9)+(5*9)+(4*7)+(3*7)+(2*6)+(1*6)=182
182 % 10 = 2
So 209977-66-2 is a valid CAS Registry Number.

209977-66-2Relevant academic research and scientific papers

Benzo[1,2:4,5]bis(1,1,2,2-tetraisopropyldisilacyclobutene)

Kyushin, Soichiro,Kitahara, Tsukasa,Matsumoto, Hideyuki

, p. 471 - 472 (1998)

Benzo[1,2:4,5]bis(1,1,2,2-tetraisopropyldisilacyclobutene) (1) was synthesized. The X-ray crystal analysis shows that the benzene ring is deformed from the D6h symmetry. Compound 1 shows an intense 1Lb absorption band in t

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