52845-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52845-80-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,8,4 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 52845-80:
(7*5)+(6*2)+(5*8)+(4*4)+(3*5)+(2*8)+(1*0)=134
134 % 10 = 4
So 52845-80-4 is a valid CAS Registry Number.
52845-80-4Relevant academic research and scientific papers
ON THE REACTION OF PRIMARY ALIPHATIC AMINES WITH 1,2-NAPHTHOQUINONE-4-SULFONIC ACID
Hartke, Klaus,Lohmann, Ulrike
, p. 693 - 696 (2007/10/02)
Primary amines react with 1,2-naphthoquinone-4-sulfonic acid to form violet dyes in a complex redox reaction.Their general structure 6 has been established by an independent synthesis.