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3-bromo-2-ethyl-5-phenylthiophene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

321735-31-3

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321735-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 321735-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,7,3 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 321735-31:
(8*3)+(7*2)+(6*1)+(5*7)+(4*3)+(3*5)+(2*3)+(1*1)=113
113 % 10 = 3
So 321735-31-3 is a valid CAS Registry Number.

321735-31-3Relevant academic research and scientific papers

Photochromism of 1,2-Bis(2-ethyl-5-phenyl-3-thienyl)perfluorocyclopentene in a single-crystalline phase. Conrotatory thermal cycloreversion of the closed-ring isomer

Kobatake,Shibata,Uchida,Irie

, p. 12135 - 12141 (2000)

1,2-Bis(2-ethyl-5-phenyl-3-thienyl)perfluorocyclopentene (1a) was found to undergo a thermally reversible photochromic reaction in solution as well as in the single-crystalline phase. Upon irradiation with ultraviolet light the hexane or toluene solution

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