1443420-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1443420-90-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,4,2 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1443420-90:
(9*1)+(8*4)+(7*4)+(6*3)+(5*4)+(4*2)+(3*0)+(2*9)+(1*0)=133
133 % 10 = 3
So 1443420-90-3 is a valid CAS Registry Number.
1443420-90-3Relevant articles and documents
Methods for Preparating Propargylamines through Metal-Free Decarboxylative Three-Component Coupling Reaction
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Paragraph 0136-0139, (2016/10/09)
The present invention relates to a method for producing propargylamine or derivatives thereof through a decarboxylative reaction without using a metal catalyst by making alkynyl carboxylic acid, aldehyde and amine react. According to the method of the pre