1239875-14-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239875-14-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,8,7 and 5 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1239875-14:
(9*1)+(8*2)+(7*3)+(6*9)+(5*8)+(4*7)+(3*5)+(2*1)+(1*4)=189
189 % 10 = 9
So 1239875-14-9 is a valid CAS Registry Number.
1239875-14-9Relevant articles and documents
Synthesis of 3-(quinolin-2-yl)-and 3,6-bis(quinolin-2-yl)-9H-carbazoles
Li, Yang,Gao, Wentao
experimental part, p. 966 - 972 (2011/03/19)
A simple and efficient synthesis of novel 3-(quinolin-2-yl)-and 3,6-bis(quinolin-2-yl)-9H-carbazoles, utilizing sodium ethoxide as a catalyst via a Friedlaender condensation reaction between 3-acetyl-9-ethyl-9H- carbazole or 3,6-diacetyl-9-ethyl-9H-carbaz