*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : UU2222500
CHEMICAL NAME           : Pyridinium,
                          4-(((7-(((2-amino-4-thiazolyl)((1-carboxyethoxy)imino
                          )acetyl)amino)-2-carb oxy-8-
                          oxo-5-thia-1-azabicyclo(4.2.0)oct-2-en-3-yl)methyl)th
                          io)-1-ethyl-, hydroxide, inner salt,
                          (6R-(6-alpha,7-beta(Z(S*))))-
CAS REGISTRY NUMBER     : 115369-52-3
LAST UPDATED            : 199403
DATA ITEMS CITED        : 1
MOLECULAR FORMULA       : C23-H24-N6-O7-S3
MOLECULAR WEIGHT        : 592.71
COMPOUND DESCRIPTOR     : Drug
SYNONYMS/TRADE NAMES :
   * ME1228
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : >5 gm/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   JANTAJ Journal of Antibiotics.  (Japan Antibiotics Research Assoc., 2-20-8
   Kamiosaki, Shinagawa-ku, Tokyo, 141, Japan)  V.2-5, 1948-52;  V.21- 1968-
   Volume(issue)/page/year: 43,62,1990
 
                            *** END OF RECORD ***