Table 1.

Conjugated Equine Estrogens: Estrogen Components[11]

Estrogen*	Approximate Percentage of Total Dose
Estrone sulfate	45
Equilin sulfate	25
17alpha-Dihydroequilin sulfate	15
delta 8, 9-Estrone sulfate	3.5
17beta-Estradiol sulfate	1-2
17alpha-Estradiol sulfate	1-2
17beta-Dihydroequilin sulfate	1-2
Equilenin sulfate	1-2
17beta-Dihydroequilenin sulfate	1-2
17alpha-Dihydroequilenin sulfate	1-2
17alpha-Dihydro-delta-estrone sulfate	ND
17beta-Dihydro-delta-estrone sulfate	ND
2-Hydroxyestrone sulfate	ND
2-Methoxyestrone sulfate	ND
5,7,9(10)-Estratriene-3beta, 17beta-diol sulfate	ND
3beta-Hydroxy-5,7,9(10)-estratrien-17-one sulfate	ND
3beta-Hydroxy-5(10),7-estradiene-17-one-3-sulfate (Estradiene)	ND

^*Present as a sodium salt

ND = not determined