*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : UQ1469000
CHEMICAL NAME           : 2H-Pyran, tetrahydromethylene-
CAS REGISTRY NUMBER     : 35656-02-1
LAST UPDATED            : 199603
DATA ITEMS CITED        : 3
MOLECULAR FORMULA       : C6-H10-O
MOLECULAR WEIGHT        : 98.16
SYNONYMS/TRADE NAMES :
   * Methylenetetrahydropyran
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 94300 mg/m3
TOXIC EFFECTS :
   Behavioral - altered sleep time (including change in righting reflex)
   Behavioral - excitement
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 48(10),82,1983
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 69160 mg/m3
TOXIC EFFECTS :
   Behavioral - altered sleep time (including change in righting reflex)
   Behavioral - excitement
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 48(10),82,1983
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 150 mg/m3/24H/13W-C
TOXIC EFFECTS :
   Brain and Coverings - recordings from specific areas of CNS
   Blood - changes in erythrocyte (RBC) count
   Blood - changes in leukocyte (WBC) count
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 48(10),82,1983
 
                            *** END OF RECORD ***