'''
Place holder

List maintained elsewhere

name	formula	exact_mass	std_inchi	std_inchi_key	id	type_of_contaminant	pubchem_cid	reference	ion_mode	mz	exact_adduct_mass	ion_form	instrument_type	instrument	chromatography	ion_source_type
Acetic Acid	C2H4O2	60.02113	InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)	QTBSBXVTEAMEQO-UHFFFAOYSA-N	CON00001	Solvent	176	Tong, H., Bell, D., Tabei, K., & Siegel, M. M. (1999). Automated data massaging, interpretation, and E-mailing modules for high throughput open access mass spectrometry. Journal of the American Society for Mass Spectrometry, 10(11), 1174-1187, doi:10.1016/s1044-0305(99)00090-2.	NEG	59	59.0138536	[M-H]-	Ion trap	Micromass Platform II	LC	ESI
Acetic Acid	C2H4O2	60.02113	InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)	QTBSBXVTEAMEQO-UHFFFAOYSA-N	CON00001	Solvent	176	Ijames, C. F., Dutky, R. C., & Fales, H. M. (1995). Iron carboxylate oxygen-centered-triangle complexes detected during electrospray use of organic acid modifiers with a comment on the Finnigan TSQ-700 electrospray inlet system. Journal of the American Society for Mass Spectrometry, 6(12), 1226-1231, doi:10.1016/1044-0305(95)00579-x.	POS	537.88	537.8790134	[M6-H6+Fe3+O]+	Triple quadrupole	Finnigan TSQ-700		ESI
Acetic Acid	C2H4O2	60.02113	InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)	QTBSBXVTEAMEQO-UHFFFAOYSA-N	CON00001	Solvent	176	Ijames, C. F., Dutky, R. C., & Fales, H. M. (1995). Iron carboxylate oxygen-centered-triangle complexes detected during electrospray use of organic acid modifiers with a comment on the Finnigan TSQ-700 electrospray inlet system. Journal of the American Society for Mass Spectrometry, 6(12), 1226-1231, doi:10.1016/1044-0305(95)00579-x.	POS	555	555.8895784	[M6-H6+H2O+Fe3+O]+	Triple quadrupole	Finnigan TSQ-700		ESI
Acetic Acid	C2H4O2	60.02113	InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)	QTBSBXVTEAMEQO-UHFFFAOYSA-N	CON00001	Solvent	176	Ijames, C. F., Dutky, R. C., & Fales, H. M. (1995). Iron carboxylate oxygen-centered-triangle complexes detected during electrospray use of organic acid modifiers with a comment on the Finnigan TSQ-700 electrospray inlet system. Journal of the American Society for Mass Spectrometry, 6(12), 1226-1231, doi:10.1016/1044-0305(95)00579-x.	POS	598	597.9001434	[M7-H6+Fe3+O]+	Triple quadrupole	Finnigan TSQ-700		ESI
Acetic Acid	C2H4O2	60.02113	InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)	QTBSBXVTEAMEQO-UHFFFAOYSA-N	CON00001	Solvent	176	Ijames, C. F., Dutky, R. C., & Fales, H. M. (1995). Iron carboxylate oxygen-centered-triangle complexes detected during electrospray use of organic acid modifiers with a comment on the Finnigan TSQ-700 electrospray inlet system. Journal of the American Society for Mass Spectrometry, 6(12), 1226-1231, doi:10.1016/1044-0305(95)00579-x.	POS	658	657.9212734	[M8-H6+Fe3+O]+	Triple quadrupole	Finnigan TSQ-700		ESI
Acetonitrile (fragment)	CN	26.003074			CON00002			Keller, B. O., Suj, J., Young, A. B., & Whittal, R. M. (2008). Interferences and contaminants encountered in modern mass spectrometry. Analytica Chimica Acta, 627(1), 71-81, doi:10.1016/j.aca.2008.04.043.	NEG	26.003623	26.0036226	[M]-				
Acetonitrile	CH3CN	41.026549	InChI=1S/C2H3N/c1-2-3/H1h3	WEVYAHXRMPXWCK-UHFFFAOYSA-N	CON00003	Solvent	6342	Waters - ESI+ Common Background Ions. http://www.waters.com/webassets/cms/support/docs/bkgrnd_ion_mstr_list.pdf.	POS	42	42.0338254	[M+H]+				


To also consider list in
https://www.maconda.bham.ac.uk

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