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90348-22-4

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90348-22-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90348-22-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,3,4 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90348-22:
(7*9)+(6*0)+(5*3)+(4*4)+(3*8)+(2*2)+(1*2)=124
124 % 10 = 4
So 90348-22-4 is a valid CAS Registry Number.

90348-22-4Relevant articles and documents

Synthesis of a polythieno[3,4-b]thiophene derivative with a low-lying HOMO level and its application in polymer solar cells

Huo, Lijun,Guo, Xia,Li, Yongfang,Hou, Jianhui

, p. 8850 - 8852 (2011)

A planar benzodithiophene with lower HOMO was copolymerized with the thieno[3,4-b]thiophene unit to obtain a new low band gap polymer of PBDPTT-C, which exhibited a higher open-circuit voltage (Voc) of 0.8 V and a promising efficiency of 5.2%.

Dithienopyrrole Derivatives with Nitronyl Nitroxide Radicals and Their Oxidation to Cationic High-Spin Molecules

Baumgarten, Martin,Kolanji, Kubandiran

supporting information, (2020/03/13)

Three 1 N-phenyl nitronyl nitroxide (NN) 4-substituted dithieno[3,2-b:2′,3′-d]pyrrole (DTP) derivatives with R1=4-phenyl-, 4H-, and 4-methylthiothiophenyl- (R12DTP-Ph-NN, R1=H, Ph and MeSTh) were designed, synthesized and

Hypervalent iodine(III): selective and efficient single-electron-transfer (SET) oxidizing agent

Dohi, Toshifumi,Ito, Motoki,Yamaoka, Nobutaka,Morimoto, Koji,Fujioka, Hiromichi,Kita, Yasuyuki

experimental part, p. 10797 - 10815 (2010/03/01)

In 1994, we first determined the single-electron-transfer (SET) oxidation ability of phenyliodine(III) bis(trifluoroacetate) (PIFA) toward phenyl ethers, affording the corresponding aromatic cation radicals. Since then, hypervalent iodine(III) has been utilized as a selective and efficient SET oxidizing agent that enables a variety of direct C-H functionalizations of aromatic rings in electron-rich arenes under mild conditions. We have now extended the original method to work in a series of heteroaromatic compounds such as thiophenes, pyrroles, and indoles. The investigations and results obtained since the start of this century are summarized in this article.

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