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294-93-9

Name 12-Crown-4
CAS 294-93-9
EINECS(EC#) 206-036-5
Molecular Formula C8H16O4
MDL Number MFCD00005103
Molecular Weight 176.21
MOL File 294-93-9.mol
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Chemical Properties

Appearance clear colorless to slightly yellow liquid after
Melting point  16 °C (lit.)
Boiling point  61-70 °C/0.5 mmHg (lit.)
density  1.089 g/mL at 25 °C(lit.)
refractive index  n20/D 1.463(lit.)
Fp  >230 °F
storage temp.  Keep in dark place,Sealed in dry,Room Temperature
form  Liquid After Melting
color  Clear colorless to slightly yellow
Specific Gravity 1.115 (20℃)
Water Solubility  MISCIBLE
Sensitive  Air Sensitive
BRN  1363064
CAS DataBase Reference 294-93-9(CAS DataBase Reference)
NIST Chemistry Reference 12-Crown-4(294-93-9)
EPA Substance Registry System 294-93-9(EPA Substance)

Safety Data

Hazard Codes  T+,Xn,Xi
Risk Statements 
R26:Very Toxic by inhalation.
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
Safety Statements 
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S36/37:Wear suitable protective clothing and gloves .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  UN 2810
WGK Germany  3
RTECS  XF0550000
F  3-9-23
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29329995
Toxicity
LD50 oral in rat: 2830mg/kg

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Material Safety Data Sheet(MSDS)

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