API Impurities
ESTRONE 1-METHYL IMPURITY
Chemical Name: 3-Hydroxy-1-methyl-estra-1,3,5(10)-trien...
CAS No:
4011-48-7
Molecular Formula: C19H24O2
Molecular Weight: 284.39
CAT No:
ALL-ESR-ME1
Keywords: Estrone 1-Methyl Impurity
Inventory Status:3-4 WEEKS
ESTRONE 13-ETHYL 3-METHOXY IMPURITY
Chemical Name: 13-Ethyl-3-methoxy-gona-1,3,5(10)-trien-...
CAS No:
848-04-4
Molecular Formula: C20H26O2
Molecular Weight: 298.42
CAT No:
ALL-ESR-ET13
Keywords: Estrone 13-Ethyl 3-Methoxy Impurity
Inventory Status:3-4 WEEKS
ESTRONE 2-METHOXY IMPURITY
Chemical Name: 3-Hydroxy-2-methoxyestra-1,3,5(10)-trien...
CAS No:
362-08-3
Molecular Formula: C19H24O3
Molecular Weight: 300.39
CAT No:
ALL-ESR-OME2
Keywords: Estrone 2-Methoxy Impurity
Inventory Status:3-4 WEEKS
ESTRONE 3-ACETATE 1-METHYL IMPURITY
Chemical Name: 3-(Acetyloxy)-1-methylestra-1,3,5(10)-tr...
CAS No:
30903-07-2
Molecular Formula: C21H26O3
Molecular Weight: 326.43
CAT No:
ALL-ESR-AC3
Keywords: Estrone 3-Acetate 1-Methyl Impurity
Inventory Status:3-4 WEEKS
ESTRONE 3-O-METHYL HYDRAZONE IMPURITY
Chemical Name: 3-Methoxy-estra-1,3,5(10)-trien-17-one h...
CAS No:
105663-60-3
Molecular Formula: C19H26N2O
Molecular Weight: 298.42
CAT No:
ALL-ESR-MHY3
Keywords: Estrone 3-O-Methyl Hydrazone Impurity
Inventory Status:3-4 WEEKS
ESTRONE 3-O-METHYL IMPURITY / (+)-ESTRONE 3-METHYL ETHER
Chemical Name: 3-Methoxy-estra-1,3,5(10)-trien-17-one
CAS No:
1624-62-0
Molecular Formula: C19H24O2
Molecular Weight: 284.39
CAT No:
ALL-ESR-OME3
Keywords: Estrone 3-O-Methyl Impurity , (+)-Estron...
Inventory Status:3-4 WEEKS
ESTRONE 3-SULFATE SODIUM SALT
Chemical Name: Estra-1,3,5(10)-trien-17-one 3-(sulfooxy...
CAS No:
438-67-5
Molecular Formula: C18H21NaO5S
Molecular Weight: 372.41
CAT No:
ALL-ESR-SUL
Keywords: Estrone 3-Sulfate Sodium Salt
Inventory Status:3-4 WEEKS
ESTRONE 4-HYDROXY IMPURITY
Chemical Name: ESTRONE 4-HYDROXY IMPURITY
CAS No:
3131-23-5
Molecular Formula: C18H22O3
Molecular Weight: 286.37
CAT No:
ALL-ESR-HYD4
Keywords: Estrone 4-Hydroxy Impurity
Inventory Status:3-4 WEEKS
ESTRONE 4-METHOXY IMPURITY
Chemical Name: 3-Hydroxy-4-methoxyestra-1,3,5(10)-trien...
CAS No:
58562-33-7
Molecular Formula: C19H24O3
Molecular Weight: 300.39
CAT No:
ALL-ESR-OME4
Keywords: Estrone 4-Methoxy Impurity
Inventory Status:3-4 WEEKS
ESTRONE 4-METHYL IMPURITY
Chemical Name: 3-Hydroxy-4-methylestra-1,3,5(10)-trien-...
CAS No:
NA
Molecular Formula: C19H24O2
Molecular Weight: 284.39
CAT No:
ALL-ESR-ME4
Keywords: Estrone 4-Methyl Impurity
Inventory Status:3-4 WEEKS
ESTRONE 6-DEHYDRO IMPURITY / 6,7-DEHYDROESTRONE
Chemical Name: 6,7-Dehydroestrone
CAS No:
2208-12-0
Molecular Formula: C18H20O2
Molecular Weight: 268.35
CAT No:
ALL-ESR-DHY6
Keywords: Estrone 6-Dehydro Impurity , 6,7-Dehydro...
Inventory Status:3-4 WEEKS
ESTRONE 6-KETO IMPURITY / 6-OXO ESTRONE
Chemical Name: 3-Hydroxyestra-1,3,5(10)-triene-6,17-dio...
CAS No:
1476-34-2
Molecular Formula: C18H20O3
Molecular Weight: 284.35
CAT No:
ALL-ESR-KET
Keywords: Estrone 6-Keto Impurity , 6-Oxo Estrone
Inventory Status:3-4 WEEKS
ESTRONE 6Α-HYDROXY IMPURITY
Chemical Name: 3,6α-Dihydroxyestra-1,3,5(10)-trien-17-...
CAS No:
1476-78-4
Molecular Formula: C18H22O3
Molecular Weight: 286.37
CAT No:
ALL-ESR-HYD6
Keywords: Estrone 6α-Hydroxy Impurity
Inventory Status:3-4 WEEKS
-Dehydro Impurity.png)
ESTRONE 8(9)-DEHYDRO IMPURITY
Chemical Name: 3-Hydroxyestra-1,3,5(10),8-tetraen-17-on...
CAS No:
474-87-3
Molecular Formula: C18H20O2
Molecular Weight: 268.35
CAT No:
ALL-ESR-DHY2
Keywords: Estrone 8(9)-Dehydro Impurity
Inventory Status:3-4 WEEKS
-Dehydro Impurity.png)
ESTRONE 9(11)-DEHYDRO IMPURITY
Chemical Name: 3-Hydroxy-estra-1,3,5(10),9(11) -tetraen...
CAS No:
1089-80-1
Molecular Formula: C18H20O2
Molecular Weight: 268.35
CAT No:
ALL-ESR-DHY1
Keywords: Estrone 9(11)-Dehydro Impurity
Inventory Status:3-4 WEEKS
ESTRONE DIMER / DI-ESTRONE ETHER
Chemical Name: Estrone 3,3'-Dimer
CAS No:
NA
Molecular Formula: C36H42O3
Molecular Weight: 522.72
CAT No:
ALL-ESR-DIM
Keywords: Estrone Dimer , Di-Estrone Ether
Inventory Status:3-4 WEEKS