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845-10-3

Name Methyl Red sodium salt
CAS 845-10-3
EINECS(EC#) 212-682-9
Molecular Formula C15H15N3O2
MDL Number MFCD00002425
Molecular Weight 269.3
MOL File 845-10-3.mol
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Chemical Properties

Appearance orange powder
Melting point  178-182 °C
Boiling point  64.7 °C
density  0.791
Fp  12 °C
storage temp.  Store at RT.
solubility  H2O: soluble
Colour Index  13020
form  Solid
pka 2.3, 5.0(at 25℃)
color  White to yellow or beige, darkening on exposure to light
Odor Odorless
PH 8.2 (10g/l, H2O, 25℃)
PH Range Red (1.2) to orange (3.4);Red (4.2) to yellow (6.3)
Stability: Reported to be unstable, but this is probably a mistake on a commercial MSDS sheet. Incompatible with strong oxidizing agents.
Water Solubility  Soluble in water. Slightly soluble in ethanol.
λmax 437nm, 410nm, 493nm
BRN  4065488
Major Application optical fibers, liquid crystal cells, holography, inks, toner, corrosion inhibitor, detergent
CAS DataBase Reference 845-10-3(CAS DataBase Reference)
EPA Substance Registry System 845-10-3(EPA Substance)
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Safety Data

Hazard Codes  Xn,C,F
Risk Statements 
R40:Limited evidence of a carcinogenic effect.
R34:Causes burns.
R11:Highly Flammable.
Safety Statements 
S36/37:Wear suitable protective clothing and gloves .
S24/25:Avoid contact with skin and eyes .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S16:Keep away from sources of ignition-No smoking .
RIDADR  UN 1170 3/PG 2
WGK Germany  3
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29270000

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Material Safety Data Sheet(MSDS)

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