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83-40-9

Name 3-Methylsalicylic acid
CAS 83-40-9
EINECS(EC#) 209-447-8
Molecular Formula C8H8O3
MDL Number MFCD00002431
Molecular Weight 152.15
MOL File 83-40-9.mol
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Chemical Properties

Appearance White To Slightly Reddish Crystalline Solid
Melting point  163-165 °C (lit.)
Boiling point  234.6°C (rough estimate)
density  1.2143 (rough estimate)
refractive index  1.4945 (estimate)
storage temp.  Inert atmosphere,Room Temperature
solubility  methanol: soluble5%, clear to slightly hazy (colorlessto faint brown)
form  Fine Powder
pka pK1:2.99 (25°C)
color  Almost white
PH 2.8 (1.5g/l, H2O, 20℃)
Water Solubility  1.5 g/L (20 ºC)
Usage Toxicity is similar to salicylic acid. Used in manufacturing of dyes
Detection Methods T,NMR
Merck  14,2581
BRN  2086811
InChIKey WHSXTWFYRGOBGO-UHFFFAOYSA-N
CAS DataBase Reference 83-40-9(CAS DataBase Reference)
NIST Chemistry Reference Hydroxytoluic acid(83-40-9)
EPA Substance Registry System 83-40-9(EPA Substance)
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Safety Data

Hazard Codes  Xn
Risk Statements 
R22:Harmful if swallowed.
R37/38:Irritating to respiratory system and skin .
R41:Risk of serious damage to eyes.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/39:Wear suitable protective clothing and eye/face protection .
S22:Do not breathe dust .
RIDADR  UN 2811
WGK Germany  3
RTECS  BZ4385000
TSCA  Yes
HS Code  29182990
Toxicity
LD50 oral in rat: 445mg/kg

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