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93330-85-9

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93330-85-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93330-85-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,3,3 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 93330-85:
(7*9)+(6*3)+(5*3)+(4*3)+(3*0)+(2*8)+(1*5)=129
129 % 10 = 9
So 93330-85-9 is a valid CAS Registry Number.

93330-85-9Downstream Products

93330-85-9Relevant articles and documents

Chemoselective acylation of benzimidazoles with phenylacetic acids under different Cu catalysts to give fused five-membered N-heterocycles or tertiary amides

Mai, Shaoyu,Zhao, Yingwei,Song, Qiuling

, p. 8685 - 8690 (2016)

C-N bond formation via a copper-catalyzed aerobic oxidative decarboxylative tandem protocol was realized. The phenylacetic acids which contain ortho-X (X = F or Br) on the aromatic ring will render a fused five-membered heterocycle via a tandem aromatic nucleophilic substitution and aerobic oxidative decarboxylative acylation at the C(sp2)-H bond of benzimidazoles under the Cu(OAc)2/K2CO3/BF3·Et2O catalytic system, while with CuBr as the catalyst and pyridine as the base, N-acylation occurred and tertiary amides were obtained.

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