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16957-70-3

Name trans-2-Methyl-2-pentenoic acid
CAS 16957-70-3
EINECS(EC#) 241-026-4
Molecular Formula C6H10O2
MDL Number MFCD00002655
Molecular Weight 114.14
MOL File 16957-70-3.mol
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Chemical Properties

Appearance clear colorless to pale yellow liquid
Melting point  26-28 °C (lit.)
Boiling point  123-125 °C/30 mmHg (lit.)
density  0.979 g/mL at 25 °C
vapor density  >1 (vs air)
vapor pressure  1.63Pa at 24℃
FEMA  3195
refractive index  n20/D 1.46(lit.)
Fp  226 °F
storage temp.  Sealed in dry,Room Temperature
solubility  soluble in Chloroform, Methanol
form  clear liquid
pka 5.00±0.19(Predicted)
color  Colorless to Light orange to Yellow
Odor at 10.00 % in dipropylene glycol. fruity strawberry woody
Odor Type fruity
Water Solubility  insoluble
InChIKey JJYWRQLLQAKNAD-SNAWJCMRSA-N
LogP 1.9 at 25℃
CAS DataBase Reference 16957-70-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Pentenoic acid, 2-methyl-, (E)-(16957-70-3)
EPA Substance Registry System 16957-70-3(EPA Substance)
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Safety Data

Hazard Codes  C
Risk Statements 
R34:Causes burns.
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  2916199590

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