TABLE 2.

Hydrocarbon compositions of C. parvum whole oocysts and oocyst walls

Hydrocarbona	Melting point (°C)b	Occurrencec in:
		Oocyst walls	Whole oocysts
C11H24 (undecane)	−25.6	+
C12H26 (dodecane)	−9.7		+
C15H32 (pentadecane)	10.0	+	+
C16H34 (hexadecane)	18.1	+	+
C17H36 (heptadecane)	22.0	+	+
C19H38 (nonadecane)	32.0	+
C20H42 (eicosane)	36.4	+
C21H44 b	40.4	+	+
C22H46 b	44.4		+
C24H50 b	51.1	+
C31H64 b	66.0-81.0		+
C32H66 b	66.0-81.0		+
C34H70 b	66.0-81.0	+

^aIdentifications are approximate for C₂₁H₄₄ through C₃₄H₇₀. Although GC-MS identified these hydrocarbons with a high-quality index (>80), retention times did not match those of analytical standards.

^bData are from Rodd's Chemistry of Carbon Compounds (37).

^c+ indicates the presence of the hydrocarbon.