21875-33-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21875-33-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,7 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21875-33:
(7*2)+(6*1)+(5*8)+(4*7)+(3*5)+(2*3)+(1*3)=112
112 % 10 = 2
So 21875-33-2 is a valid CAS Registry Number.
21875-33-2Relevant academic research and scientific papers
Koshima, Hideko,Kutsunai, Kosuke
, p. 1299 - 1302 (2002)
Microwave irradiation for several minutes caused reaction of diarylamines with carboxylic acids in the presence of zinc chloride to give 9-substituted acridines in good yield.
