Melting point :>250°C
Density :0.392[at 20℃]
bulk density :600kg/m3
vapor pressure :0Pa at 25℃
storage temp. :no restrictions.
solubility :H2O: soluble1mg/mL
form :Crystalline Powder
Colour Index :42045
color :Dark bluish-green to dark purple
PH Range :Yellow-orange (0.8) to deep blue (3.0)
PH :6.9 (10g/l, H2O, 20℃)
Water Solubility :1 g/20 mL (20 ºC)
λmax :635nm, 410nm
ε(extinction coefficient) :≥50000 at 635-641nm in H2O
≥5300 at 408-414nm in H2O
≥7500 at 308-314nm in H2O Merck :13,9078
BRN :4108121
Stability :Stable. Incompatible with strong oxidizing agents.
Major Application :lymph node identification, nanocomposite particles for biomedical applications, Liquid crystal diplays, color filters, electrorheological materials, photographic materials, optical filters, inks, highlighters, dyeing paper, wood dyeing, textiles, detergents, hair dyes, cosmetics, antiparasitic agent
LogP :-5.34
IARC :3 (Vol. 16, Sup 7) 1987
EPA Substance Registry System :C.I. Acid Blue 1, sodium salt (129-17-9)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.