Exemestane

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Pharmaceutical Reference Standards

1-Hydroxy-4-Methylestra-1,3,5(10)-Trien-17-One

CAT. No.	CP-E3011
CAS. No.	4954-08-9
Mol. F.	C19H24O2
Mol. Wt.	284.4
Stock Status:	Custom Synthesis

Exemestane

CAT. No.	CP-E45000
CAS. No.	107868-30-4
Mol. F.	C20H24O2
Mol. Wt.	296.41
Stock Status:	Custom Synthesis

Exemestane EP Impurity B

CAT. No.	CP-E45002
CAS. No.	184972-09-6
Mol. F.	C20H26O3
Mol. Wt.	314.4
Stock Status:	Custom Synthesis

Exemestane EP Impurity C

CAT. No.	CP-E45003
CAS. No.	2130745-60-5
Mol. F.	C21H24O2
Mol. Wt.	308.42
Stock Status:	Custom Synthesis

Exemestane EP Impurity D

CAT. No.	CP-E45004
CAS. No.	897-06-3
Mol. F.	C19H24O2
Mol. Wt.	284.4
Stock Status:	Custom Synthesis

Exemestane EP Impurity E

CAT. No.	CP-E45005
CAS. No.	19457-55-7
Mol. F.	C20H26O2
Mol. Wt.	298.4
Stock Status:	Custom Synthesis

Exemestane EP Impurity F

CAT. No.	CP-E45008
CAS. No.	72648-46-5
Mol. F.	C19H22O3
Mol. Wt.	298.38
Stock Status:	Custom Synthesis

Exemestane Impurity 2

CAT. No.	CP-E45009
CAS. No.	861398-01-8
Mol. F.	C21H28O3
Mol. Wt.	328.45
Stock Status:	Custom Synthesis

Exemestane mesylate analogue

CAT. No.	CP-E45010
CAS. No.	861395-77-9
Mol. F.	C21H28O5S
Mol. Wt.	392.51
Stock Status:	Custom Synthesis

6-Hydroxymethyl Exemestane

CAT. No.	CP-E45012
CAS. No.	152764-26-6
Mol. F.	C20H24O3
Mol. Wt.	312.41
Stock Status:	Custom Synthesis

17-Beta-Hydroxy Exemestane Epoxide

CAT. No.	CP-E45013
CAS. No.	1331732-05-8
Mol. F.	C20H26O3
Mol. Wt.	314.43
Stock Status:	Custom Synthesis

Exemestane β-Spirooxirane

CAT. No.	CP-E45014
CAS. No.	152764-31-3
Mol. F.	C20H24O3
Mol. Wt.	312.41
Stock Status:	Custom Synthesis

Exemestane Related Compound 1

CAT. No.	CP-E45015
CAS. No.	NA
Mol. F.	C20H24O3
Mol. Wt.	312.41
Stock Status:	Custom Synthesis

Exemestane Related Compound 2

CAT. No.	CP-E45016
CAS. No.	NA
Mol. F.	C20H24O3
Mol. Wt.	312.41
Stock Status:	Custom Synthesis

Exemestane Related Compound 2 (17-alpha Isomer)

CAT. No.	CP-E45017
CAS. No.	NA
Mol. F.	C20H24O3
Mol. Wt.	312.41
Stock Status:	Custom Synthesis

Exemestane Related Compound 2 (17-beta Isomer)

CAT. No.	CP-E45018
CAS. No.	NA
Mol. F.	C20H24O3
Mol. Wt.	312.41
Stock Status:	Custom Synthesis

Exemestane Impurity 3

CAT. No.	CP-E45019
CAS. No.	2467590-81-2
Mol. F.	C20H24O2
Mol. Wt.	296.41
Stock Status:	Custom Synthesis

Exemestane α-Spirooxirane

CAT. No.	CP-E45020
CAS. No.	152764-24-4
Mol. F.	C20H24O3
Mol. Wt.	312.41
Stock Status:	Custom Synthesis

Epoxy Exemestane (6 Alpha , Beta Isomer)

CAT. No.	CP-E45021
CAS. No.	184972-12-1
Mol. F.	C20H24O3
Mol. Wt.	312.41
Stock Status:	In Stock

Exemestane EP Impurity I

CAT. No.	CP-E45022
CAS. No.	NA
Mol. F.	C21H26O3
Mol. Wt.	326.44
Stock Status:	Custom Synthesis

Delta-1,6-methylene-17-hydroxyprogest

CAT. No.	CP-E45023
CAS. No.	1204325-01-8
Mol. F.	C22H28O3
Mol. Wt.	340.46
Stock Status:	Custom Synthesis

Exemestane EP Impurity J

CAT. No.	CP-E45024
CAS. No.	1160599-91-6
Mol. F.	C22H28O3
Mol. Wt.	340.46
Stock Status:	Custom Synthesis

Exemestane EP Impurity H

CAT. No.	CP-E45025
CAS. No.	122370-91-6
Mol. F.	C20H26O2
Mol. Wt.	298.4
Stock Status:	Custom Synthesis

Exemestane Diol Impurity

CAT. No.	CP-E45026
CAS. No.	184972-11-0
Mol. F.	C20H26O4
Mol. Wt.	330.4
Stock Status:	Custom Synthesis

Exemestane Impurity 1

CAT. No.	CP-E45027
CAS. No.	159354-61-7
Mol. F.	C20H24O3
Mol. Wt.	312.4
Stock Status:	Custom Synthesis

Exemestane Impurity 5

CAT. No.	CP-E45028
CAS. No.	63-05-8
Mol. F.	C19H26O2
Mol. Wt.	286.4
Stock Status:	Custom Synthesis

Rel. Cas No: 40202-88-8 (Sulfate salt)

4-chloro exemestane

CAT. No.	CP-E45030
CAS. No.	107868-36-0
Mol. F.	C20H23ClO2
Mol. Wt.	330.9
Stock Status:	Custom Synthesis

Exemestane Impurity 8

CAT. No.	CP-E45031
CAS. No.	1035-69-4
Mol. F.	C19H24O2
Mol. Wt.	284.4
Stock Status:	Custom Synthesis

Exemestane Impurity 9

CAT. No.	CP-E45032
CAS. No.	68539-12-8
Mol. F.	C19H24O2
Mol. Wt.	284.4
Stock Status:	Custom Synthesis

Exemestane Impurity 10

CAT. No.	CP-E45033
CAS. No.	17305-49-6
Mol. F.	C19H24O2
Mol. Wt.	284.4
Stock Status:	Custom Synthesis

6α-Methoxymethyl Exemestane Impurity

CAT. No.	CP-E45034
CAS. No.	881896-95-3
Mol. F.	C21H28O3
Mol. Wt.	328.5
Stock Status:	Custom Synthesis

Exemestane Impurity 15

CAT. No.	CP-E45035
CAS. No.	1204325-02-9
Mol. F.	C22H30O3
Mol. Wt.	342.5
Stock Status:	Custom Synthesis

Exemestane Impurity 16

CAT. No.	CP-E45036
CAS. No.	571-44-8
Mol. F.	C19H28O2
Mol. Wt.	288.4
Stock Status:	Custom Synthesis

Exemestane Impurity 17

CAT. No.	CP-E45037
CAS. No.	10104-53-7
Mol. F.	C19H24O3
Mol. Wt.	300.4
Stock Status:	Custom Synthesis

Exemestane Impurity 18

CAT. No.	CP-E45038
CAS. No.	1963-03-7
Mol. F.	C19H30O2
Mol. Wt.	290.4
Stock Status:	Custom Synthesis

Exemestane Impurity 19

CAT. No.	CP-E45039
CAS. No.	33805-57-1
Mol. F.	C19H28O2
Mol. Wt.	288.4
Stock Status:	Custom Synthesis

Exemestane Impurity 20

CAT. No.	CP-E45040
CAS. No.	600178-04-9
Mol. F.	C19H32O3
Mol. Wt.	308.5
Stock Status:	Custom Synthesis

Exemestane Impurity 21

CAT. No.	CP-E45041
CAS. No.	49644-04-4
Mol. F.	C19H32O3
Mol. Wt.	308.5
Stock Status:	Custom Synthesis

Exemestane Impurity 22

CAT. No.	CP-E45042
CAS. No.	49644-02-2
Mol. F.	C19H30O3
Mol. Wt.	306.4
Stock Status:	Custom Synthesis

Exemestane Impurity 23

CAT. No.	CP-E45043
CAS. No.	14895-71-7
Mol. F.	C19H30O3
Mol. Wt.	306.4
Stock Status:	Custom Synthesis

Exemestane Impurity 24

CAT. No.	CP-E45044
CAS. No.	26991-58-2
Mol. F.	C19H26O3
Mol. Wt.	302.4
Stock Status:	Custom Synthesis

6-beta-Exemestane EP Impurity B

CAT. No.	CP-E45047
CAS. No.	121021-51-0
Mol. F.	C20H26O3
Mol. Wt.	314.43
Stock Status:	Custom Synthesis

Exemestane Impurity 14

CAT. No.	CP-E45048
CAS. No.	NA
Mol. F.	C21H28O5S
Mol. Wt.	392.51
Stock Status:	Custom Synthesis

Metabolites

Exemestane Metabolite 1

CAT. No.	CP-E45045
CAS. No.	NA
Mol. F.	C20H27NO4S
Mol. Wt.	377.5
Stock Status:	Please Enquire

Exemestane Metabolite 2

CAT. No.	CP-E45046
CAS. No.	NA
Mol. F.	C21H28O4
Mol. Wt.	344.5
Stock Status:	Please Enquire

a b c d e f g h i j k l m n o p q r s t u v w x y z

Exemestane

Pharmaceutical Reference Standards

1-Hydroxy-4-Methylestra-1,3,5(10)-Trien-17-One

Exemestane

Exemestane EP Impurity B

Exemestane EP Impurity C

Exemestane EP Impurity D

Exemestane EP Impurity E

Exemestane EP Impurity F

Exemestane Impurity 2

Exemestane mesylate analogue

6-Hydroxymethyl Exemestane

17-Beta-Hydroxy Exemestane Epoxide

Exemestane β-Spirooxirane

Exemestane Related Compound 1

Exemestane Related Compound 2

Exemestane Related Compound 2 (17-alpha Isomer)

Exemestane Related Compound 2 (17-beta Isomer)

Exemestane Impurity 3

Exemestane α-Spirooxirane

Epoxy Exemestane (6 Alpha , Beta Isomer)

Exemestane EP Impurity I

Delta-1,6-methylene-17-hydroxyprogest

Exemestane EP Impurity J

Exemestane EP Impurity H

Exemestane Diol Impurity

Exemestane Impurity 1

Exemestane Impurity 5

4-chloro exemestane

Exemestane Impurity 8

Exemestane Impurity 9

Exemestane Impurity 10

6α-Methoxymethyl Exemestane Impurity

Exemestane Impurity 15

Exemestane Impurity 16

Exemestane Impurity 17

Exemestane Impurity 18

Exemestane Impurity 19

Exemestane Impurity 20

Exemestane Impurity 21

Exemestane Impurity 22

Exemestane Impurity 23

Exemestane Impurity 24

6-beta-Exemestane EP Impurity B

Exemestane Impurity 14

Metabolites

Exemestane Metabolite 1

Exemestane Metabolite 2