103426-92-2 Usage
Description
1,2,4,5,7,8-Hexachloronaphthalene is a chlorinated organic compound that belongs to the class of polychlorinated naphthalenes (PCNs). It is a persistent organic pollutant (POP) characterized by its chemical stability, resistance to degradation, and potential for long-range environmental transport. Due to its chemical properties, it has been used as a standard for environmental testing and research.
Uses
Used in Environmental Testing and Research:
1,2,4,5,7,8-Hexachloronaphthalene is used as a standard reference material for the analysis of multi-persistent organic pollutants in various environmental samples. Its stability and resistance to degradation make it an ideal candidate for monitoring and assessing the presence of other POPs in the environment.
Used in Breast Milk Analysis:
In the context of public health research, 1,2,4,5,7,8-Hexachloronaphthalene is used as a substance for the analysis of persistent organic pollutants in breast milk of first-time mothers in Ireland. This application helps to understand the exposure levels of these pollutants in the population and their potential health implications for infants and mothers.
Check Digit Verification of cas no
The CAS Registry Mumber 103426-92-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,4,2 and 6 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 103426-92:
(8*1)+(7*0)+(6*3)+(5*4)+(4*2)+(3*6)+(2*9)+(1*2)=92
92 % 10 = 2
So 103426-92-2 is a valid CAS Registry Number.
InChI:InChI=1/C10H2Cl6/c11-3-1-5(13)9(15)8-7(3)4(12)2-6(14)10(8)16/h1-2H
103426-92-2Relevant articles and documents
Synthesis and Crystallography of Two Hexachloronaphthalenes. Part II. 1,2,4,5,6,8-Hexachloronaphthalene and 1,2,4,5,7,8-Hexachloronaphthalene
Jakobsson, Eva,Loennberg, Cecilia,Eriksson, Lars
, p. 891 - 898 (2007/10/02)
1,2,4,5,6,8-Hexachloronaphthalene (3) and 1,2,4,5,7,8-hexachloronaphthalene (6) have been synthesized by chlorination of 1,5-dinitronaphthalene and 1,8-dinitronaphthalene to 3,4,7,8-tetrachloro-1,5-dinitronaphthalene and 3,4,5,6-tetrachloro-1,8-dinitronaphthalene, respectively.The nitro groups were then replaced by chlorine atoms in one step according to the Ponomarenko reaction.Crystal and molecular structures of the two title isomers were determined by single-crystal X-ray diffraction methods.Two similar, centrosymmetric molecules were found for 3 while two similar molecules not connected by any symmetry element in the space group were found for 6.Both molecules of 3 were planar, whereas one of the two molecules of 6 was planar and the other one was slightly distorted.The hexachloronaphthalenes 3 and 6 crystallized in the space group P21/c and P21/a, respectively, with the following cell dimensions: 3, a = 17.568(5), b = 3.853(2), c = 18.564(6) and β = 117.14(2) deg; 6, a = 18.553(13), b = 3.882(2), c = 31.55(2) and β = 94.74(5) deg.The structures were determined by direct methods and the obtained models, containing a total of 97 parameters for 3 and 189 parameters for 6, were refined by full-matrix least-squares calculations that gave a final R value of 0.055 for 527 unique reflections with I2?(I) for 3, and 0.075 for 1257 unique reflections with I2?(I) for 6.
