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3142-72-1

Name 2-Methyl-2-pentenoic acid
CAS 3142-72-1
EINECS(EC#) 241-026-4
Molecular Formula C6H10O2
MDL Number MFCD00002655
Molecular Weight 114.14
MOL File 3142-72-1.mol

Chemical Properties

Appearance white semi-transparent crystalline
Melting point  26-28 °C(lit.)
Boiling point  123-125 °C30 mm Hg(lit.)
density  0.979 g/mL at 25 °C
vapor density  >1 (vs air)
FEMA  3195 | 2-METHYL-2-PENTENOIC ACID
refractive index  n20/D 1.46(lit.)
Fp  226 °F
storage temp.  Sealed in dry,Room Temperature
form  powder to lump
pka 5.00±0.19(Predicted)
color  White to Almost white
Odor at 10.00 % in dipropylene glycol. dry acid sweaty strawberry woody fruity jam
Odor Type acidic
FreezingPoint  20.0 to 25.0 ℃
JECFA Number 1210
InChIKey JJYWRQLLQAKNAD-SNAWJCMRSA-N
LogP 1.89
CAS DataBase Reference 3142-72-1(CAS DataBase Reference)
NIST Chemistry Reference 2-Pentenoic acid, 2-methyl-(3142-72-1)
EPA Substance Registry System 3142-72-1(EPA Substance)

Safety Data

Hazard Codes  C
Risk Statements 
R34:Causes burns.
R22:Harmful if swallowed.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
RIDADR  UN 3261 8/PG 3
WGK Germany  2
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29161900

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