*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : QU0800000
CHEMICAL NAME           : Niobium, tetrachlorotetrakis(eta(sup
                          5)-2,4-cyclopentadien-1-yl)-mu-oxodi-
CAS REGISTRY NUMBER     : 72478-52-5
LAST UPDATED            : 199712
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C20-H20-Cl4-Nb2-O
MOLECULAR WEIGHT        : 604.02
WISWESSER LINE NOTATION : L50J 0-NB-- 0L50J&GGO-NB-- 0L50J&- 0L50J
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * Tetrachlorotetrakis(eta(sup 5)-2,4-cyclopentadien-1-yl)-mu-oxodiniobium
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 500 mg/kg
TOXIC EFFECTS :
   Behavioral - changes in motor activity (specific assay)
   Skin and Appendages - hair
   Tumorigenic - active as anti-cancer agent
REFERENCE :
   JINCAO Journal of Inorganic and Nuclear Chemistry.  (Oxford, UK)  V.1-43,
   1955-81.  Volume(issue)/page/year: 42,1789,1980
 
                            *** END OF RECORD ***