Impurity Reference Standard - Products

L-Tryptophan

CAT No: CL-TYP-01 CAS No: 73-22-3 Mol Wt: 204.2 Mol F: C11H12N2O2 Inv Status: Custom Synthesis

Chemical Name: L-tryptophan

N-Acetyl-DL-Tryptophan

CAT No: CL-TYP-02 CAS No: 87-32-1 Mol Wt: 246.3 Mol F: C13H14N2O3 Inv Status: Custom Synthesis

Chemical Name: N-Acetyl-tryptophan

D-tryptophyl-D-tryptophan

CAT No: CL-TYP-03 CAS No: 58607-72-0 Mol Wt: 390.4 Mol F: C22H22N4O3 Inv Status: Custom Synthesis

Chemical Name: D-tryptophyl-D-tryptophan

5-Hydroxy L-Tryptophan

CAT No: CL-TYP-04 CAS No: [4350-09-8] Mol Wt: 220.2 Mol F: C11H12N2O3 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-Amino-3-(5-hydroxy-1H-indol-3-yl)propanoic acid

Tryptophan USP Related Compound B

CAT No: CL-TYP-05 CAS No: 1218-34-4 Mol Wt: 246.3 Mol F: C13H14N2O3 Inv Status: Custom Synthesis

Chemical Name: Acetyl-L-tryptophan

Tryptophan EP Impurity A

CAT No: CL-TYP-06 CAS No: 132685-02-0 Mol Wt: 434.4 Mol F: C24H26N4O4 Inv Status: Custom Synthesis

Chemical Name: 3,3'-[ethane-1,1-diylbis(1H-indol-1,3-diyl)]bis[(2S)-2-aminopropanoic acid]

D-Tryptophan

CAT No: CL-TYP-07 CAS No: 153-94-6 Mol Wt: 204.2 Mol F: C11H12N2O2 Inv Status: Custom Synthesis

Chemical Name: D-Tryptophan

Indole-3-Carboxyaldehyde

CAT No: CL-TYP-08 CAS No: 487-89-8 Mol Wt: 145.2 Mol F: C9H7NO Inv Status: Custom Synthesis

Chemical Name: 1H-indole-3-carbaldehyde

Tryptophan EP Impurity B

CAT No: CL-TYP-09 CAS No: 184955-21-3 Mol Wt: 236.2 Mol F: C11H12N2O4 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-amino-3-[(3RS)-3-hydroxy-2-oxo-2,3-dihydro-1H-indol-3-yl]propanoic acid

Tryptophan EP Impurity C

CAT No: CL-TYP-10 CAS No: 2922-83-0 Mol Wt: 208.2 Mol F: C10H12N2O3 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-Amino-4-(2-aminophenyl)-4-oxobutanoic acid

Tryptophan EP Impurity E

CAT No: CL-TYP-11 CAS No: 759198 Mol Wt: 236.2 Mol F: C11H12N2O4 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-Amino-4-[2-(formylamino)phenyl]-4-oxobutanoic acid

Tryptophan EP Impurity F

CAT No: CL-TYP-12 CAS No: 145545-23-9 Mol Wt: 180.2 Mol F: C9H12N2O2 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-Amino-3-(phenylamino)propanoic acid

Tryptophan EP Impurity G

CAT No: CL-TYP-13 CAS No: 21704-80-3 Mol Wt: 220.2 Mol F: C11H12N2O3 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-Amino-3-(2-hydroxy-1H-indol-3-yl)propanoic acid

Tryptophan EP Impurity H

CAT No: CL-TYP-14 CAS No: 6052-68-2 Mol Wt: 216.2 Mol F: C12H12N2O2 Inv Status: Custom Synthesis

Chemical Name: (3RS)-1,2,3,4-Tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic acid

Tryptophan EP Impurity I

CAT No: CL-TYP-15 CAS No: 5470-37-1 Mol Wt: 230.3 Mol F: C13H14N2O2 Inv Status: Custom Synthesis

Chemical Name: 1-Methyl-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic acid

Tryptophan EP Impurity J

CAT No: CL-TYP-16 CAS No: 164068-19-3 Mol Wt: 393.4 Mol F: C22H23N3O4 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-Amino-3-[2-[2,3-dihydroxy-1-(1H-indol-3-yl)propyl]-1H-indol-3-yl]propanoic acid

Tryptophan EP Impurity K

CAT No: CL-TYP-17 CAS No: 149724-31-2 Mol Wt: 333.4 Mol F: C20H19N3O2 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-Amino-3-[2-(1H-indol-3-ylmethyl)-1H-indol-3-yl]propanoic acid

Tryptophan EP Impurity L

CAT No: CL-TYP-18 CAS No: 287170-99-4 Mol Wt: 345.4 Mol F: C21H19N3O2 Inv Status: Custom Synthesis

Chemical Name: 1-(1H-Indol-3-ylmethyl)-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic acid

Fmoc-alpha methyl Tryptophan

CAT No: CL-TYP-19 CAS No: 112913-63-0 Mol Wt: 440.5 Mol F: C27H24N2O4 Inv Status: Custom Synthesis

Chemical Name: Na-(((9H-fluoren-9-yl)methoxy)carbonyl)-Na-methyl-L-tryptophan

Tryptophan Cyclized Impurity

CAT No: CL-TYP-20 CAS No: 40856-80-2 Mol Wt: 229.2 Mol F: C12H11N3O2 Inv Status: Custom Synthesis

Chemical Name: (S)-5-((1H-Indol-3-yl)methyl)imidazolidine-2,4-dione

N-Carbamyltryptophan

CAT No: CL-TYP-21 CAS No: 54896-75-2 Mol Wt: 247.3 Mol F: C12H13N3O3 Inv Status: Custom Synthesis

Chemical Name: Carbamoyl-D-tryptophan

Tryptophan Impurity 1

CAT No: CL-TYP-22 CAS No: 678996-63-9 Mol Wt: 434.5 Mol F: C25H30N4O3 Inv Status: Custom Synthesis

Chemical Name: (S)-N-(2-((1-Amino-3-(1H-indol-3-yl)-1-oxopropan-2-yl)amino)-2-oxoethyl)-6-phenylhexanamide

Tryptophan Impurity 2

CAT No: CL-TYP-23 CAS No: 27018-75-3 Mol Wt: 337.4 Mol F: C19H19N3O3 Inv Status: Custom Synthesis

Chemical Name: Benzyl (1-amino-3-(1H-indol-3-yl)-1-oxopropan-2-yl)carbamate

Type:Impurity Reference Standard

API NAME:Tryptophan

Total Products: 23

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