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Benzene, 1,1'-(3,3-dibromo-1,2-propadienylidene)bis- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

19969-89-2

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19969-89-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19969-89-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,6 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19969-89:
(7*1)+(6*9)+(5*9)+(4*6)+(3*9)+(2*8)+(1*9)=182
182 % 10 = 2
So 19969-89-2 is a valid CAS Registry Number.

19969-89-2Relevant academic research and scientific papers

Reactivity of 3-halopropynols: X-ray crystallographic analysis of 1, 1-dihalocumulenes and 2+2 cycloaddition products

Gulia, Nurbey,Pigulski, Bart?omiej,Szafert, S?awomir

, p. 191 - 204 (2017/07/26)

Reactions of 3-halopropynols and their butadiyne analogues with BF3Et2O or HX(aq) were investigated. Depending on the end group and the reaction conditions, different products were obtained which belonged to two classes: (

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