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1288993-68-9

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1288993-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1288993-68-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,8,9,9 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1288993-68:
(9*1)+(8*2)+(7*8)+(6*8)+(5*9)+(4*9)+(3*3)+(2*6)+(1*8)=239
239 % 10 = 9
So 1288993-68-9 is a valid CAS Registry Number.

1288993-68-9Downstream Products

1288993-68-9Relevant academic research and scientific papers

Synthesis of tri- and diaryloxybenzenes by rhodium-catalyzed complete intermolecular [2+2+2] cycloaddition of aryl ethynyl ethers

Komine, Yoshiyuki,Miyauchi, Yuta,Kobayashi, Masayuki,Tanaka, Ken

, p. 3092 - 3098 (2010)

We have established that a cationic rhodium(I)-H8-BINAP complex catalyzes the complete intermolecular homo-[2+2+2] cycloaddition of aryl ethynyl ethers and cross-[2+2+2] cycloaddition of aryl ethynyl ethers with electron-deficient monoalkynes,

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