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Pharmaceutical Reference Standards / Impurity Standards

7-Methyltryptophol

7-Methyltryptophol

CAT. No.T290002
CAS. No.39232-85-4
Mol. F.C11H13NO
Mol. W.175.23 g/mol
Stock Status:Custom Synthesis

7-isopropyl Tryptophol

7-isopropyl Tryptophol

CAT. No.T290003
CAS. No.57817-12-6
Mol. F.C13H17NO
Mol. W.203.28 g/mol
Stock Status:Custom Synthesis

7-Propyltryptophol

7-Propyltryptophol

CAT. No.T290004
CAS. No.57817-15-9
Mol. F.C13H17NO
Mol. W.203.28 g/mol
Stock Status:Instock

Tryptophan EP Impurity A

Tryptophan EP Impurity A

CAT. No.T290005
CAS. No.132685-02-0
Mol. F.C24H26N4O4
Mol. W.434.49 g/mol
Stock Status:Instock

N-Acetyl-L-Tryptophan

N-Acetyl-L-Tryptophan

CAT. No.T290006
CAS. No.1218-34-4
Mol. F.C13H14N2O3
Mol. W.246.26 g/mol
Stock Status:Instock

D,L-Tryptophan

D,L-Tryptophan

CAT. No.T290007
CAS. No.54-12-6
Mol. F.C11H12N2O2
Mol. W.204.23 g/mol
Stock Status:Custom Synthesis

Tadalafil Impurity 19

Tadalafil Impurity 19

CAT. No.T290008
CAS. No.14907-27-8
Mol. F.C12H15ClN2O2
Mol. W.254.71 g/mol
Stock Status:Instock

Tryptophan EP Impurity C

Tryptophan EP Impurity C

CAT. No.T290009
CAS. No.2922-83-0
Mol. F.C10H12N2O3
Mol. W.208.21 g/mol
Stock Status:Custom Synthesis

Tryptophan EP Impurity I

Tryptophan EP Impurity I

CAT. No.T290010
CAS. No.5470-37-1
Mol. F.C13H14N2O2
Mol. W.230.30 g/mol
Stock Status:Instock

5-Hydroxy-DL-tryptophan

5-Hydroxy-DL-tryptophan

CAT. No.T290011
CAS. No.56-69-9
Mol. F.C11H12N2O3
Mol. W.220.23 g/mol
Stock Status:Instock

Tryptophan EP impurity K

Tryptophan EP impurity K

CAT. No.T290014
CAS. No.149724-31-2
Mol. F.C20H19N3O2
Mol. W.333.38 g/mol
Stock Status:Custom Synthesis

Tryptophan EP Impurity L Lithium Salt (Mixture of Diastereomers)

Tryptophan EP Impurity L Lithium Salt (Mixture of Diastereomers)

CAT. No.T290015
CAS. No.287170-99-4
Mol. F.C21H18N3O2Li
Mol. W.351.33 g/mol
Stock Status:Custom Synthesis

Tryptophan EP Impurity E

Tryptophan EP Impurity E

CAT. No.T290016
CAS. No.`3978-11-8
Mol. F.C11H12N2O4
Mol. W.236.22 g/mol
Stock Status:Custom Synthesis

D-Tryptophan

D-Tryptophan

CAT. No.T290017
CAS. No.153-94-6
Mol. F.C11H12N2O2
Mol. W.204.2 g/mol
Stock Status:Custom Synthesis

5-hydroxy-L-tryptophan

5-hydroxy-L-tryptophan

CAT. No.T290019
CAS. No.4350-09-8
Mol. F.C11H12N2O3
Mol. W.220.22 g/mol
Stock Status:Instock

Tryptophan Cyclized Impurity

Tryptophan Cyclized Impurity

CAT. No.T290022
CAS. No.40856-80-2
Mol. F.C12H11N3O2
Mol. W.229.23 g/mol
Stock Status:Instock

1-Nitroso-L-tryptophan

1-Nitroso-L-tryptophan

CAT. No.T290023
CAS. No.68807-89-6
Mol. F.C11H11N3O3
Mol. W.233.22 g/mol
Stock Status:Instock

7-Benzyloxyindole

7-Benzyloxyindole

CAT. No.T290026
CAS. No.20289-27-4
Mol. F.C15H13NO
Mol. W.223.27 g/mol
Stock Status:Custom Synthesis

Tryptophan EP Impurity G

Tryptophan EP Impurity G

CAT. No.T290027
CAS. No.21704-80-3
Mol. F.C11H12N2O3
Mol. W.220.23 g/mol
Stock Status:Custom Synthesis

1,2,3,3a,8,8a-Hexahydro-3a-hydroxypyrrolo[2,3-b]indole-2-carboxylic acid

1,2,3,3a,8,8a-Hexahydro-3a-hydroxypyrrolo[2,3-b]indole-2-carboxylic acid

CAT. No.T290028
CAS. No.35169-97-2
Mol. F.C11H12N2O3
Mol. W.220.23 g/mol
Stock Status:Custom Synthesis

Tryptophan Impurity 1

Tryptophan Impurity 1

CAT. No.T290029
CAS. No.678996-63-9
Mol. F.C25H30N4O3
Mol. W.434.53 g/mol
Stock Status:Custom Synthesis

Isotope Labelled Compounds

DL-Tryptophan-2,3,3-d3

DL-Tryptophan-2,3,3-d3

CAT. No.T290020
CAS. No.340257-61-6
Mol. F.C11H9D3N2O2
Mol. W.207.25 g/mol
Stock Status:Please Enquire

L-Tryptophan-2,3,3-d3

L-Tryptophan-2,3,3-d3

CAT. No.T290021
CAS. No.133519-78-5
Mol. F.C11H9D3N2O2
Mol. W.207.24 g/mol
Stock Status:Please Enquire

5-Hydroxyindole-2,4,6,7-D4-3-acetic-2,2-D2 Acid

5-Hydroxyindole-2,4,6,7-D4-3-acetic-2,2-D2 Acid

CAT. No.T290024
CAS. No.NA
Mol. F.C10H3D6NO3
Mol. W.197.22 g/mol
Stock Status:Please Enquire

L-Tryptophan-D5

L-Tryptophan-D5

CAT. No.T290025
CAS. No.62595-11-3
Mol. F.C11H7D5N2O2
Mol. W.209.26 g/mol
Stock Status:Please Enquire