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2611-82-7

Name Acid Red 18
CAS 2611-82-7
EINECS(EC#) 220-036-2
Molecular Formula C20H11N2Na3O10S3
MDL Number MFCD00004084
Molecular Weight 604.47
MOL File 2611-82-7.mol

Chemical Properties

Appearance Deep red powder
Melting point  >300oC
density  1.772[at 20℃]
vapor pressure  0Pa at 25℃
storage temp.  Inert atmosphere,Room Temperature
solubility  DMSO (Slightly, Heated, Sonicated), Methanol (Slightly, Heated), Water (Slightly)
Colour Index  16255
form  Powder
color  Bordeaux to brown
Water Solubility  305.21g/L at 20℃
BRN  4122340
Stability: Hygroscopic
EPA Substance Registry System 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[(4-sulfo-1-naphthalenyl) azo]-, trisodium salt(2611-82-7)

Safety Data

Safety Statements 
WGK Germany  2
RTECS  QJ6530000
HS Code  32041200
Safety Profile
Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx and SOx.
Hazardous Substances Data 2611-82-7(Hazardous Substances Data)
Toxicity
LD50 oral in rat: > 8gm/kg

Hazard Information

Material Safety Data Sheet(MSDS)

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