2050-72-8 Usage
Derivative of
Naphthalene
Chlorine attachment
First and sixth carbon atoms
Common uses
Pesticide, insecticide, dye manufacturing, organic chemicals
Physical state
White, crystalline solid
Odor
Strong, aromatic
Solubility in water
Slightly soluble
Solubility in organic solvents
Highly soluble
Toxicity
Moderately toxic to humans and the environment
Carcinogenicity
Possible human carcinogen (International Agency for Research on Cancer)
Environmental impact
Harmful to aquatic organisms
Regulation
Regulated in many countries due to environmental concerns
Check Digit Verification of cas no
The CAS Registry Mumber 2050-72-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,5 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2050-72:
(6*2)+(5*0)+(4*5)+(3*0)+(2*7)+(1*2)=48
48 % 10 = 8
So 2050-72-8 is a valid CAS Registry Number.
InChI:InChI=1/C10H6Cl2/c11-8-4-5-9-7(6-8)2-1-3-10(9)12/h1-6H
2050-72-8Relevant articles and documents
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Hampson,Weissberger
, p. 393,395 (1936)
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Koslow,Tubjansskaja
, (1951)
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PROCESS FOR SYNTHESIS OF AROMATIC COMPOUNDS
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Page/Page column 15, (2008/06/13)
The present invention refers to a process for preparing a compound of the formula (I) wherein R denotes an organic radical which, together with the two carbon atoms to which it is bonded, forms a carbocyclic or heterocyclic ring; R1, R2, R3 and X, independently, denote hydrogen, halogen, nitro, cyano or an organic radical; or R1 and R2 or R2 and R3, together with the carbon atoms to which they are bonded, form a ring; which comprises exposing a compound of the formula (II) wherein R1, R2, R3 and X are defined as given above and Y and Z, independently, have one of the meanings of X; to an energy source in the presence of a catalyst system.
