. 2012 Mar 2;80(2):433–446. doi: 10.3797/scipharm.1109-04

Tab. 2.

ESI-FTICR-HRMS of kosins from the n-heptane and ethyl acetate fraction of Hagenia abyssinica

Kosins	[M-H]⁻			structure proposal according to Schröder (1980) [41]
	found	calc. for		structure proposal according to Schröder (1980) [41]
onecyclic	235.09680	C₁₃H₁₅O₄⁻	235.09758	C1
	237.11250	C₁₃H₁₇O₄⁻	237.11323	K8
	239.09194	C₁₂H₁₅O₅⁻	239.09250
	249.11262	C₁₄H₁₇O₄⁻	249.11323
	251.09185	C₁₃H₁₅O₅⁻	251.09250	K6
	253.10742	C₁₃H₁₇O₅⁻	253.10814

twocyclic	445.18691	C₂₄H₂₉O₈⁻	445.18679	K13
	447.16642	C₂₃H₂₇O₉⁻	447.16606	K17, K19
	459.20173	C₂₅H₃₁O₈⁻	459.20244	K2, K7, K13
	461.18181	C₂₄H₂₉O₉⁻	461.18171	K19
	473.18253	C₂₅H₂₉O₉⁻	473.18171	K15
	473.21705	C₂₆H₃₃O₈⁻	473.21809	K2, K7, K13
	475. 19745	C₂₅H₃₁O₉⁻	475.19736	K14, K18
	487.19769	C₂₆H₃₁O₉⁻	487.19736	K15, K21
	487.23372	C₂₇H₃₅O₈⁻	487.23374	K2,K7
	489.21290	C₂₆H₃₃O₉⁻	489.21301	K14, K18
	501.21376	C₂₇H₃₃O₉⁻	501.21301	K9, K15, K21
	503.22896	C₂₇H₃₅O₉⁻	503.22866	K14, K18

tricyclic	639.24591	C₃₄H₃₉O₁₂⁻	639.24470	K11
	653.26244	C₃₅H₄₁O₁₂⁻	653.26035	K11,
	667.27778	C₃₆H₄₃O₁₂⁻	667.27600	K1, K10, K11
	681.29365	C₃₇H₄₅O₁₂⁻	681.29165	K1, K11, K10
	695.30817	C₃₈H₄₇O₁₂⁻	695.30730	K4, K5, K10, K11
	709.31967	C₃₉H₄₉O₁₂⁻	709.31708	K1, K4, K5, K10