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249919-39-9

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249919-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 249919-39-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,9,9,1 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 249919-39:
(8*2)+(7*4)+(6*9)+(5*9)+(4*1)+(3*9)+(2*3)+(1*9)=189
189 % 10 = 9
So 249919-39-9 is a valid CAS Registry Number.

249919-39-9Downstream Products

249919-39-9Relevant academic research and scientific papers

Lewis acid promoted hetero [2 + 2] cycloaddition reactions of aldehydes with 10-propynyl-9(10h)-acridone. A highly stereoselective synthesis of acrylic acid derivatives and 1,3-dienes using an electron deficient variant of ynamine

Hsung, Richard P.,Zificsak, Craig A.,Wei, Lin-Li,Douglas, Christopher J.,Xiong, Hui,Mulder, Jason A.

, p. 1237 - 1240 (1999)

(matrix presented) Reactivities of 10-propynyl-9(10H)-acridone toward various aldehydes in BF3·Et20-promoted hetero [2 + 2] cycloaddition reactions are described here. This electron deficient variant of ynamine is more stable and eas

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