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42156-75-2

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42156-75-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42156-75-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,5 and 6 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42156-75:
(7*4)+(6*2)+(5*1)+(4*5)+(3*6)+(2*7)+(1*5)=102
102 % 10 = 2
So 42156-75-2 is a valid CAS Registry Number.

42156-75-2Relevant articles and documents

Biomimetic Asymmetric Reduction of Tetrasubstituted Olefin 2,3-Disubstituted Inden-1-ones with Chiral and Regenerable NAD(P)H Model CYNAM

Ding, Yi-Xuan,Wu, Bo,Zhou, Yong-Gui,Zhu, Zhou-Hao

supporting information, p. 7166 - 7170 (2021/09/22)

Because of the formidable development of the asymmetric reduction of tetrasubstituted olefins, an effective method is in urgent demand. Herein, through the biomimetic protocol of the coenzyme NAD(P)H, the reduction of tetrasubstituted olefin 2,3-substitut

A rapid and efficient access to diaryldibenzo[b,f][1,5]diazocines

Wang, Xiao,Li, Jianzhong,Zhao, Na,Wan, Xiaobo

, p. 709 - 711 (2011/04/24)

2-Benzoylbenzoyl azides undergo facile cyclization under acidic conditions to give substituted dibenzo[b,f][1,5]-diazocines in good yields. This approach shortens the synthetic steps toward these compounds as compared with conventional methods. The mechanism of the diazocine synthesis is assumed to proceed by an unprecedented intermolecular [2 + 2] cyclization.

Synthesis and Characterization of a New Benzofulvene Polymer Showing a Thermoreversible Polymerization Behavior

Cappelli, Andrea,Mohr, Galla Pericot,Anzini, Maurizio,Vomero, Salvatore,Donati, Alessandro,Casolaro, Mario,Mendichi, Raniero,Giorgi, Gianluca,Makovec, Francesco

, p. 9473 - 9476 (2007/10/03)

A new polymer based on a functionalized benzofulvene moiety has been synthesized by spontaneous polymerization of the monomer in the solid state. This polymer shows a very high molar mass, high solubility in the most common organic solvents, and thermorev

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