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5-bromo-6-phenyl-2H-pyran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91635-18-6

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91635-18-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91635-18-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,3 and 5 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91635-18:
(7*9)+(6*1)+(5*6)+(4*3)+(3*5)+(2*1)+(1*8)=136
136 % 10 = 6
So 91635-18-6 is a valid CAS Registry Number.

91635-18-6Downstream Products

91635-18-6Relevant academic research and scientific papers

Cy2NH·HX-promoted cyclizations of o-(alk-1-ynyl)benzoates and (Z)-alk-2-en-4-ynoate with copper halides to synthesize isocoumarins and α-pyrone

Liang, Yun,Xie, Ye-Xiang,Li, Jin-Heng

, p. 400 - 406 (2007)

Cy2NH·HX was found to improve the cyclization reactions of o-(alk-1-ynyl)benzoates and (Z)-alk-2-en-4-ynoate with CuX2 (X = Cl, Br) to synthesize the corresponding 4-haloisocoumarins and 5-bromo-2-pyrone, respectively. In the presenc

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