*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : QJ6170000 CHEMICAL NAME : 2,7-Naphthalenedisulfonic acid, 5-amino-3-((4-((1,8-dihydroxy-3,6-disulfo-2-naphthale nyl)azo) phenyl)azo)-4-hydroxy-, tetrasodium salt CAS REGISTRY NUMBER : 16589-20-1 LAST UPDATED : 199503 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C26-H15-N5-O15-S4.4Na MOLECULAR WEIGHT : 857.66 SYNONYMS/TRADE NAMES : * Hydrotypic Blue * Hydrotypic Blue 2 *** 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 : 12 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 24(10),55,1980 *** END OF RECORD ***