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251940-05-3

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251940-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 251940-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,9,4 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 251940-05:
(8*2)+(7*5)+(6*1)+(5*9)+(4*4)+(3*0)+(2*0)+(1*5)=123
123 % 10 = 3
So 251940-05-3 is a valid CAS Registry Number.

251940-05-3Downstream Products

251940-05-3Relevant articles and documents

Multicomponent Cascade Reaction by Metal-Free Aerobic Oxidation for Synthesis of Highly Functionalized 2-Amino-4-coumarinyl-5-arylpyrroles

Zi, Quan-Xing,Yang, Chang-Long,Li, Kun,Luo, Qin,Lin, Jun,Yan, Sheng-Jiao

, p. 327 - 338 (2020)

A novel approach has been constructed for the synthesis of two types of 2-amino-4-coumarinyl-5-arylpyrroles (ACAPs, 5 and 6) through a cascade reaction and a metal-free catalyzed aerobic oxidation reaction of arylglyoxal monohydrates 1, 1,1-enediamines (E

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