Search on: POLYCYCLIC AROMATIC HYDROCARBONS 
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Descriptor English:   Polycyclic Hydrocarbons, Aromatic 
Descriptor Spanish:   Hidrocarburos Policíclicos Aromáticos 
Descriptor Portuguese:   Hidrocarbonetos Policíclicos Aromáticos 
Synonyms English:   Polycyclic Aromatic Hydrocarbons
Polynuclear Aromatic Hydrocarbons  
Tree Number:   D02.455.426.559.847
D04.615
Definition English:   A major group of unsaturated cyclic hydrocarbons containing two or more rings. The vast number of compounds of this important group, derived chiefly from petroleum and coal tar, are rather highly reactive and chemically versatile. The name is due to the strong and not unpleasant odor characteristic of most substances of this nature. (From Hawley's Condensed Chemical Dictionary, 12th ed, p96) 
History Note English:   96; was NON MESH 1974-95; POLYNUCLEAR AROMATIC HYDROCARBONS was see POLYCYCLIC HYDROCARBONS 1975-95 
Allowable Qualifiers English:  
AD administration & dosage AE adverse effects
AG agonists AN analysis
AI antagonists & inhibitors BL blood
CF cerebrospinal fluid CS chemical synthesis
CH chemistry CL classification
CT contraindications EC economics
HI history IM immunology
IP isolation & purification ME metabolism
PK pharmacokinetics PD pharmacology
PO poisoning RE radiation effects
ST standards SD supply & distribution
TU therapeutic use TO toxicity
UR urine  
Record Number:   11518 
Unique Identifier:   D011084 

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