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667919-12-2

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667919-12-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 667919-12-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,9,1 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 667919-12:
(8*6)+(7*6)+(6*7)+(5*9)+(4*1)+(3*9)+(2*1)+(1*2)=212
212 % 10 = 2
So 667919-12-2 is a valid CAS Registry Number.

667919-12-2Relevant articles and documents

Ni-Catalyzed Dual C-H Annulation of Benzimidazoles with Alkynes for Synthesis of π-Extended Heteroarenes

Qi, Shao-Long,Li, Yue,Li, Jiang-Fei,Zhang, Tao,Luan, Yu-Xin,Ye, Mengchun

supporting information, p. 4034 - 4039 (2021/05/26)

Transition metal catalyzed dual C-H activation and annulation with alkynes was an attractive protocol to construct polycyclic π-extended structures. However, most of them were dominated by noble metal catalysts. Disclosed herein was the study of base-metal Ni-catalysis for dual C-H annulation of N-aromatic imidazole, which produced a range of desired polycyclic aza-quinolines in 48-95% yields. The use of bifunctional phosphine oxide ligand proved to be critical for success.

Structure-activity relationships for 1-phenylbenzimidazoles as selective ATP site inhibitors of the platelet-derived growth factor receptor

Palmer, Brian D.

, p. 5457 - 5465 (2007/10/03)

1-Phenylbenzimidazoles are shown to be a new class of ATP-site inhibitors of the platelet-derived growth factor receptor (PDGFR). Structure- activity relationships (SARs) are narrow, with closely related heterocycles being inactive. A systematic study of

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