*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UO3200000 CHEMICAL NAME : Pteridine, 4-amino- CAS REGISTRY NUMBER : 6973-01-9 BEILSTEIN REFERENCE NO. : 0131978 REFERENCE : 5-26-17-00224 (Beilstein Handbook Reference) LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C6-H5-N5 MOLECULAR WEIGHT : 147.16 WISWESSER LINE NOTATION : T66 BN DN GN JM IHJ EZ SYNONYMS/TRADE NAMES : * 4-Aminopteridine * 4-Pteridinamine *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 745 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : JPMSAE Journal of Pharmaceutical Sciences. (American Pharmaceutical Assoc., 2215 Constitution Ave., NW, Washington, DC 20037) V.50- 1961- Volume(issue)/page/year: 63,1068,1974 *** END OF RECORD ***