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420838-62-6

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420838-62-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 420838-62-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,0,8,3 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 420838-62:
(8*4)+(7*2)+(6*0)+(5*8)+(4*3)+(3*8)+(2*6)+(1*2)=136
136 % 10 = 6
So 420838-62-6 is a valid CAS Registry Number.

420838-62-6Upstream product

420838-62-6Downstream Products

420838-62-6Relevant articles and documents

Broadly Effective Enantioselective Diels-Alder Reactions of 1-Amino-substituted-1,3-butadienes

Huang, Yong,Iwama, Tetsuo,Rawal, Viresh H.

, p. 1163 - 1164 (2002)

matrix presented A broad range of substituted 1-amino-1,3-butadienes undergo enantioselective Diels-Alder reactions with methacrolein in the presence of 5 mol % of Cr(III)-salen complex 1. The reactions are carried out conveniently, at room temperature, a

Chiral Covalent Organic Frameworks with High Chemical Stability for Heterogeneous Asymmetric Catalysis

Han, Xing,Xia, Qingchun,Huang, Jinjing,Liu, Yan,Tan, Chunxia,Cui, Yong

supporting information, p. 8693 - 8697 (2017/07/06)

Covalent organic frameworks (COFs) featuring chirality, stability, and function are of both fundamental and practical interest, but are yet challenging to achieve. Here we reported the metal-directed synthesis of two chiral COFs (CCOFs) by imine-condensat

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