Estradiol Impurity Standards | EP USP

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1-HYDROXY-4-METHYLESTRA-1,3,5(10)-TRIEN-17-ONE

Chemical Name: (8R,9S,13S,14S)-1-Hydroxy-4,13-dimethyl-...

CAS No:
4954-08-9

Molecular Formula: C19H24O2

Molecular Weight: 284.4

CAT No:
ALL-ESTA-1288

Keywords: SMILES string - OC(C=CC(C)=C1CC2)=C1[C@]...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

1-METHYLESTRONE

Chemical Name: (8R,9S,13S,14S)-3-Hydroxy-1,13-dimethyl-...

CAS No:
4011-48-7

Molecular Formula: C19H24O2

Molecular Weight: 284.4

CAT No:
ALL-ESTA-1268

Keywords: SMILES string - C[C@@]1(C2=O)[C@](CC2)([...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

17ALPH-ESTRADIOL SULFATE SODIUM SALT

Chemical Name: Sodium (8R,9S,13S,14S,17R)-17-hydroxy-13...

CAS No:
56050-04-5

Molecular Formula: C18H23O5S : Na

Molecular Weight: 351.4 : 23.0

CAT No:
ALL-ESTA-1267

Keywords: SMILES string - C[C@@]1([C@@H]2O)[C@](CC...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

2-METHOXY 17-BITA-ESTRADIOL

Chemical Name: (8R,9S,13S,14S,17S)-2-Methoxy-13-methyl-...

CAS No:
362-07-2

Molecular Formula: C19H26O3

Molecular Weight: 302.4

CAT No:
ALL-ESTA-1300

Keywords: SMILES string - OC(C(OC)=C1)=CC2=C1[C@@]...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

2-METHYL ESTRADIOL

Chemical Name: (8R,9S,13S,14S,17S)-2,13-dimethyl-7,8,9,...

CAS No:
1818-12-8

Molecular Formula: C19H26O2

Molecular Weight: 286.4

CAT No:
ALL-ESTA-1287

Keywords: SMILES string - OC1=CC2=C([C@]3(CC[C@@]4...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

3-O-METHYL ESTRADIOL DIMER

Chemical Name: (8R,8'R,9S,9'S,13S,13'S,1...

CAS No:
N.A.

Molecular Formula: C49H59N7O4

Molecular Weight: 810.1

CAT No:
ALL-ESTA-1289

Keywords: SMILES string - [H][C@@]12[C@](CCC3=C2C=...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

4-METHYLESTRADIOL CYPIONATE (USP)

Chemical Name: 3-Hydroxy-4-methylestra-1,3,5(10)-trien-...

CAS No:
N.A.

Molecular Formula: C27H38O3

Molecular Weight: 410.6

CAT No:
ALL-ESTA-1269

Keywords: SMILES string - O=C(O[C@H]1CC[C@@]2([H])...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

B-ESTRADIOL 17-ACETATE

Chemical Name: (8R,9S,13S,14S,17S)-3-Hydroxy-13-methyl-...

CAS No:
1743-60-8

Molecular Formula: C20H26O3

Molecular Weight: 314.4

CAT No:
ALL-ESTA-12676

Keywords: SMILES string - C[C@@]1([C@H]2OC(C)=O)[C...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

DELTA-9,11-PROMESTRIENE

Chemical Name: (8S,13S,14S,17S)-17-methoxy-13-methyl-3-...

CAS No:
2575516-67-3

Molecular Formula: C22H30O2

Molecular Weight: 326.5

CAT No:
ALL-ESTA-1270

Keywords: SMILES string - C[C@@]12[C@](CC[C@@H]2OC...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

ESTRADIOL 17 BUTYRATE IMPURITY

Chemical Name: [(8R,9S,13S,14S,17S)-3-hydroxy-13-methyl...

CAS No:
18069-79-9

Molecular Formula: C22H30O3

Molecular Weight: 342.47

CAT No:
ALL-ESTA-2329

Keywords: ESTRADIOL 17 BUTYRATE IMPURITY

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

ESTRADIOL 17-HEXANOATE

Chemical Name: (8R,9S,13S,14S,17S)-3-hydroxy-13-methyl-...

CAS No:
71764-18-6

Molecular Formula: C24H34O3

Molecular Weight: 370.5

CAT No:
ALL-ESTA-1281

Keywords: SMILES string - C[C@]1(CC2)[C@](CC[C@@H]...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

ESTRADIOL 17ALPHA-HYDROXY IMPURITY

Chemical Name: Estra-1,3,5(10)-triene-3,17alpha-diol (a...

CAS No:
57-91-0

Molecular Formula: C18H24O2

Molecular Weight: 272.38

CAT No:
ALL-ESTA-1241

Keywords: SMILES string - C[C@@]12[C@H](O)CC[C@@]1...

Inventory Status:IN STOCK-595-45

COA MSDS

ESTRADIOL 6 ALPHA HYDROXY IMPURITY

Chemical Name: 3,6a,17a-Estratriol

CAS No:
1229-24-9

Molecular Formula: C18H24O3

Molecular Weight: 288.38

CAT No:
ALL-ESTA-1242

Keywords: SMILES string - C[C@@]1([C@H]2O)[C@](CC2...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

ESTRADIOL 6 BETA-HYDROXY IMPURITY

Chemical Name: (6beta,17beta)-Estra-1,3,5(10)-triene-3,...

CAS No:
3583-03-7

Molecular Formula: C18H24O3

Molecular Weight: 288.38

CAT No:
ALL-ESTA-1243

Keywords: SMILES string - C[C@@]1([C@H]2O)[C@](CC2...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

ESTRADIOL 6,7 DEHYDRO IMPURITY

Chemical Name: 1,3,5(10),6-estratetraen-3,17beta-diol (...

CAS No:
7291-41-0

Molecular Formula: C18H22O2

Molecular Weight: 270.37

CAT No:
ALL-ESTA-1244

Keywords: SMILES string - C[C@@]1([C@H]2O)[C@](CC2...

Inventory Status:IN STOCK-598-45

COA MSDS

ESTRADIOL ACETATE

Chemical Name: (8R,9S,13S,14S,17S)-17-Hydroxy-13-methyl...

CAS No:
4245-41-4

Molecular Formula: C20H26O3

Molecular Weight: 314.4

CAT No:
ALL-ESTA-1271

Keywords: SMILES string - C[C@@]1([C@H]2O)[C@](CC2...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL DIACETATE

Chemical Name: Estra-1,3,5(10)-triene-3,17-diol (17β)-...

CAS No:
3434-88-6

Molecular Formula: C22H28O4

Molecular Weight: 356.46

CAT No:
ALL-ESTA-2331

Keywords: SMILES string -C[C@@]1([C@H]2OC(C)=O)[C@...

Inventory Status:IN STOCK-599-45

COA MSDS

ESTRADIOL DICYPIONATE (USP)

Chemical Name: Estra-1,3,5(10)-trien-3,17?-diyl di(cycl...

CAS No:
633-36-3

Molecular Formula: C34H48O4

Molecular Weight: 520.8

CAT No:
ALL-ESTA-1272

Keywords: SMILES string - C[C@@]12[C@@H](OC(CCC3CC...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

ESTRADIOL DIENANTHATE

Chemical Name: (8R,9S,13S)-3-(Hexanoyloxy)-8,13-dimethy...

CAS No:
N.A.

Molecular Formula: ALL-ESTA-1273

Molecular Weight: 496.7

CAT No:
ALL-ESTA-1273

Keywords: SMILES string - C[C@@]12C(C([H])CC2([H])...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL DIMER 1

Chemical Name: (13S,17S)-4-(((13S,17S)-17-Hydroxy-13-me...

CAS No:
N.A.

Molecular Formula: C36H46O4

Molecular Weight: 542.8

CAT No:
ALL-ESTA-1290

Keywords: SMILES string - OC1=CC=C2C(CCC3C2CC[C@@]...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL DIMER 2

Chemical Name: (13S,17S)-2-(((13S,17S)-17-Hydroxy-13-me...

CAS No:
N.A.

Molecular Formula: C36H46O4

Molecular Weight: 542.8

CAT No:
ALL-ESTA-1274

Keywords: SMILES string - O[C@H]1CCC2C(C3CC[C@@]21...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL DIMER IMPURITY

Chemical Name: (13S,17S)-2-(((13S,17S)-17-Hydroxy-13-me...

CAS No:
N.A.

Molecular Formula: C36H46O4

Molecular Weight: 542.8

CAT No:
ALL-ESTA-1275

Keywords: SMILES string - OC1=CC=C2C(CCC3C2CC[C@@]...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL DIMER IMPURITY 1

Chemical Name: (8R,8'R,9S,9'S,13S,13'S,1...

CAS No:
N.A.

Molecular Formula: C47H55N7O4

Molecular Weight: 782.0

CAT No:
ALL-ESTA-1291

Keywords: SMILES string - OC(C=C1)=CC2=C1[C@]3([H]...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL DIVALERATE

Chemical Name: (17)-Estra-1,3,5(10)-triene-3,17-diol 3,...

CAS No:
63042-28-4

Molecular Formula: C28H40O4

Molecular Weight: 440.61

CAT No:
ALL-ESTA-1266

Keywords: SMILES string - C[C@@]12[C@](OC(CCCC)=O)...

Inventory Status:IN STOCK-600-45

COA MSDS

ESTRADIOL EP IMPURITY A

Chemical Name: 3-Hydroxyestra-1,3,5(10)-trien-17-one

CAS No:
53-16-7

Molecular Formula: C18H22O2

Molecular Weight: 270.37

CAT No:
ALL-ESTA-1245

Keywords: SMILES string - C[C@]1([C@](CC2)([H])[C@...

Inventory Status:IN STOCK-601-45

COA MSDS

ESTRADIOL EP IMPURITY D

Chemical Name: Estra-1,3,5(10),9(11)-tetraene-3,17-diol

CAS No:
791-69-5

Molecular Formula: C18H22O2

Molecular Weight: 270.37

CAT No:
ALL-EST-D

Keywords: SMILES string - C[C@@]12[C@@H](O)CC[C@@]...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL IMPURITY 1

Chemical Name: (8R,9S,13S,14S,17S)-17-Hydroxy-13-methyl...

CAS No:
41460-44-0

Molecular Formula: C26H36O3

Molecular Weight: 396.6

CAT No:
ALL-ESTA-1286

Keywords: SMILES string - C[C@@]1([C@H]2O)[C@](CC2...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

ESTRADIOL IMPURITY 2

Chemical Name: (13S,17S)-17-Methoxy-13-methyl-7,8,9,11,...

CAS No:
N.A.

Molecular Formula: C19H26O2

Molecular Weight: 286.4

CAT No:
ALL-ESTA-1301

Keywords: SMILES string - C[C@@]12C(CC[C@@H]2OC)C3...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS

ESTRADIOL IMPURITY 3

Chemical Name: (13S,17S)-17-Hydroperoxy-13-methyl-7,8,9...

CAS No:
N.A.

Molecular Formula: C18H24O3

Molecular Weight: 288.4

CAT No:
ALL-ESTA-1305

Keywords: SMILES string - C[C@@]12C(CC[C@@H]2OO)C3...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL IMPURITY 4

Chemical Name: (1S,3aS,4S,7aS)-4-(2,5-dihydroxypheneth...

CAS No:
57780-81-1

Molecular Formula: C18H24O4

Molecular Weight: 304.4

CAT No:
ALL-ESTA-1304

Keywords: SMILES string - C[C@]([C@H]1O)(CCC2=O)[C...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL IMPURITY 5

Chemical Name: (8R,9S,13R)-3,15-Dihydroxy-13-methyl-6,7...

CAS No:
N.A.

Molecular Formula: C18H20O3

Molecular Weight: 284.4

CAT No:
ALL-ESTA-1292

Keywords: SMILES string - O=C1C(O)=C2[C@]3([H])CCC...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL IMPURITY 6

Chemical Name: (4aS,5aR,7aS,8S,10aS,10bS)-8-Hydroxy-7a-...

CAS No:
1429637-70-6

Molecular Formula: C18H22O3

Molecular Weight: 286.4

CAT No:
ALL-ESTA-1293

Keywords: SMILES string - C[C@@]12[C@](CC[C@@H]2O)...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL IMPURITY 7

Chemical Name: (3S,3aS,13aR)-3,9,13-Trihydroxy-3a-methy...

CAS No:
N.A.

Molecular Formula: C18H24O4

Molecular Weight: 304.4

CAT No:
ALL-ESTA-1294

Keywords: SMILES string - O[C@H]1CC[C@@]([C@]1(C)C...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL TRI KETO IMPURITY

Chemical Name: (1S,3aR,13aS)-1-hydroxy-13a-methyl-2,3,3...

CAS No:
N.A.

Molecular Formula: C18H22O4

Molecular Weight: 302.4

CAT No:
ALL-ESTA-1295

Keywords: ESTRADIOL TRI KETO IMPURITY

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL USP RELATED COMPOUND B

Chemical Name: (17)-Estra-1,3,5(10),6-tetraene-3,17-dio...

CAS No:
7291-41-0

Molecular Formula: C18H22O2

Molecular Weight: 270.37

CAT No:
ALL-ESTA-1248

Keywords: SMILES string - C[C@@]1([C@H]2O)[C@](CC2...

Inventory Status:IN STOCK-604-45

COA MSDS

ESTRADIOL USP RELATED COMPOUND C

Chemical Name: ESTRADIOL USP RELATED COMPOUND C

CAS No:
571-92-6

Molecular Formula: C18H22O3

Molecular Weight: 286.4

CAT No:
ALL-ESTA-1249

Keywords: SMILES string - C[C@@]12[C@](CC[C@@H]2O)...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL-17-VALERATE

Chemical Name: Estra-1,3,5(10)-triene-3,17-diol (17β)-...

CAS No:
979-32-8

Molecular Formula: C23H32O3

Molecular Weight: 356.50

CAT No:
ALL-ESTA-2330

Keywords: SMILES string - CCCCC(O[C@H]1CC[C@@]2([H...

Inventory Status:IN STOCK-607-45

COA MSDS

ESTRADIOL-17BETA-GLUCURONIDE

Chemical Name: (2S,3S,4S,5R,6R)-3,4,5-trihydroxy-6-(((8...

CAS No:
1806-98-0

Molecular Formula: C24H32O8

Molecular Weight: 448.5

CAT No:
ALL-ESTA-1296

Keywords: SMILES string - C[C@]1(CC2)[C@](CC[C@@H]...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRADIOL-9-ENE CYPIONATE (USP)

Chemical Name: 3-Hydroxyestra-1,3,5(10),9(11)-tetraen-1...

CAS No:
N.A.

Molecular Formula: C26H34O3

Molecular Weight: 394.6

CAT No:
ALL-ESTA-1279

Keywords: SMILES string - O=C(O[C@H]1CC[C@@]2([H])...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRIOL 17-GLUCURONIDE

Chemical Name: (2S,3S,4S,5R,6R)-6-(((8R,9S,13S,14S,16R,...

CAS No:
7219-89-8

Molecular Formula: C24H32O9

Molecular Weight: 464.5

CAT No:
ALL-ESTA-1298

Keywords: SMILES string - C[C@@]1([C@H]2O[C@@H]([C...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRIOL 3-GLUCURONIDE

Chemical Name: (2S,3S,4S,5R,6S)-6-(((8R,9S,13S,14S,16R,...

CAS No:
2479-91-6

Molecular Formula: C24H32O9

Molecular Weight: 464.5

CAT No:
ALL-ESTA-1299

Keywords: SMILES string - C[C@@]1([C@H]2O)[C@](C[C...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRIOL 3-SULFATE

Chemical Name: sodium (8R,9S,13S,14S,16R,17R)-16,17-dih...

CAS No:
5150-64-1

Molecular Formula: C18H23O6S

Molecular Weight: 367.4 : 23.0

CAT No:
ALL-ESTA-1302

Keywords: SMILES string - C[C@@]1([C@H]2O)[C@](C[C...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRIOL 3-SULFATE-16-ALFA-GLUCURONIDE

Chemical Name: 3,4,5-trihydroxy-6-((17-hydroxy-13-methy...

CAS No:
4661-65-8

Molecular Formula: C24H32O12S

Molecular Weight: 544.6

CAT No:
ALL-ESTA-1303

Keywords: SMILES string - CC(C1O)(CC2)C(CC1OC(C(C3...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

ESTRIOL EP IMPURITY A

Chemical Name: Estra-1,3,5(10),9(11)-tetraene-3,16alpha...

CAS No:
246021-20-5

Molecular Formula: C18H22O3

Molecular Weight: 286.37

CAT No:
ALL-E05978

Keywords: SMILES string - [H][C@@]12CCC3=CC(O)=CC=...

Inventory Status:DELIVERY 3-4 WEEKS

COA MSDS

PROMESTRIENE

Chemical Name: (8R,9S,13S,14S,17S)-17-Methoxy-13-methyl...

CAS No:
39219-28-8

Molecular Formula: C22H32O2

Molecular Weight: 328.5

CAT No:
ALL-ESTA-1278

Keywords: SMILES string - C[C@@]1([C@H]2OC)[C@](CC...

Inventory Status:DELIVERY IMMEDIATE

COA MSDS