Optimization of Cat’s Whiskers Tea (Orthosiphon stamineus) Using Supercritical Carbon Dioxide and Selective Chemotherapeutic Potential against Prostate Cancer Cells

Table 5

GC-MS quantitative estimation of phytochemicals in SC-CO₂ extract (B2) of O. stamineus.

Peak	Retention time (min)	Area %	Phytoconstituents	Molecular formula	Molecular weight
a	9.99	1.05	1,3-Benzodioxole, 5-[3-acetaminopropyl]-1-methyl-4-phenyl-3,4-dihydroisoquinoline myo-1,2,3,4,5,6-hexamethoxycarbonylcyclohexane	C18H24O12	432.375
b	11.15	1.34	2-Phenanthrenol, 1,2,3,4,4a,4b,5,6,8a,9,10,10a-dodecahydro-4a,7-dimethyl-8-[3-cyano-3(trimethylsilyloxy)propyl]-, acetate	C25H41NO3Si	431.69
c	12.19	1.24	2-Acetylamino-5-iodo-4-p-tolyl-thi ophene-3-carboxylic acid ethyl ester	C18H54O9Si9	667.385
d	13.13	1.66	Benzoic acid, 2,5-bis(trimethylsiloxy)-, trimethylsilyl ester	C16H30O4Si3	370.663
e	13.98	1.46	Acetamide, N-[(4.alpha.,5.alpha.)-cholestan-4-yl]	C29H51NO	429.721
f	14.78	2.35	Octadecamethyl-cyclononasiloxane	C18H54O9Si9	667.385
g	15.57	2.38	1-Monolinoleoylglycerol trimethylsilyl ether	C27H54O4Si2	498.886
h	16.48	6.65	2-Amino-2-oxo-acetic acid, N-[3,4-dimethylphenyl]-, ethyl ester	C12H15NO3	221.252
i	17.60	2.15	2-Propen-1-one, 1,3-diphenyl	C15H12O	208.26
J	25.33	27.84	Anthracene, 9-(2-propenyl)	C17H14	218.293
K	26.39	26.86	3,8-Dimethyl-4-(1-methylethylidene)-2,4,6,7,8,8a-hexahydro-5(1H)-azulenone	C15H22O	218.334
l	27.01	4.38	Acetic acid (3-hydroxy-7-isopropenyl-1,4a-dimethyl-2,3,4,4a,5,6,7,8-octahydronaphthalen-2-yl) ester	C17H26O3	278.386