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Identifying an unknown liquid via infrared spectrum.

Please identifying the unknown liquid represented by infrared spectrum in the attachment.

Also, please attach a IR spectra from the SDBS spectral database for me to compare your answer.

The liquid is soluble in water and has a boiling boing somewhere between 120-125 degrees Celsius.

If the liquid is a alcohol, ketone or an aldehyde the choice are (but not limited to if you have a better answer):

Alcohol
1) 3,3,-Dimethyl-2-butanol
2) 2,3-Dimethyl-2-butanol
3) 2-methyl-2-pentanol
4) 3-methyl-3-pentanol
5) 2-methoxyethanol
6) 2-methyl-3-pentanol
7) 2-Chloroethanol

Ketone
1) 4-methyl-2-pentanone (isobutyl methyl ketone)
2) 2,4-dimethyl-3-pentanone (diisopropyl ketone)
3) 3-Hexanone
4) 2-Hexanone
5) 4-methyl-3-penten-2-one

Aldehyde
1) 2-ethylbutanal
2) Hexanal

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The expert examines identifying an unknown liquid via infrared spectrum.

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