74338-23-1 Usage
General Description
2,3',5',6-Tetrachlorobiphenyl, also known as PCB 64, is a chemical compound that belongs to the group of polychlorinated biphenyls (PCBs). It is a highly toxic and persistent organic pollutant that was widely used in various industrial applications until its production was banned due to its harmful effects on human health and the environment. 2,3',5',6-Tetrachlorobiphenyl is a chlorinated biphenyl compound consisting of four chlorine atoms attached to different carbon atoms in the biphenyl structure. It is known to accumulate in the fatty tissues of animals and can cause a range of health issues, including neurological and developmental disorders, immune system suppression, and carcinogenic effects. Due to its persistence and bioaccumulative properties, PCB 64 continues to pose a significant risk to ecosystems and public health despite the ban on its production and use.
Check Digit Verification of cas no
The CAS Registry Mumber 74338-23-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,3,3 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74338-23:
(7*7)+(6*4)+(5*3)+(4*3)+(3*8)+(2*2)+(1*3)=131
131 % 10 = 1
So 74338-23-1 is a valid CAS Registry Number.
74338-23-1Relevant articles and documents
Physical, spectral and chromatographic properties of all 209 individual PCB congeners
Bolgar,et al.
, p. 2687 - 2705 (2007/10/03)
Through the use of two capillary GC columns: 40% octadecyl/ 15% phenyl methyl siloxane and 50% phenyl methyl siloxane, it was possible to separate 201 PCB congeners with only four unresolved pairs. The data compiled in this study for all 209 congeners will aid in the identification of selected individual components of these environmental pollutants. The use of this data also presents the opportunity for the improved quantification of the commercial PCB formulations. -from Authors
