In database:

165-200 nm

1-Butyne (C₂H₅CCH)
Molecular weight 54.09
Freezing point: -126 C
Boiling point: 10 C

IR cross-sections
From NIST Chemistry Webbook
Image of IR data from 780 to 3800 cm^-1.

UV cross-sections
Please see The MPI-Mainz UV/VIS Spectral Atlas

Additional References

Notes

List of available data for all molecules in database
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