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Tryptophan Related Products


SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Tryptophan, pharmacopeial and non-pharmacopeial Tryptophan impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Tryptophan impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Tryptophan-related products are thoroughly characterized. Tryptophan products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

Pharmaceutical Reference Standards

D-Tryptophan

Picture of D-Tryptophan
SZ CAT No:: SZ-T001022
CAS No: 153-94-6
Mol.F.: C11H12N2O2
Mol.Wt.: 204.2
Inv. Status: In Stock

L-Tryptophan

Picture of L-Tryptophan
SZ CAT No:: SZ-T001001
CAS No: 73-22-3
Mol.F.: C11H12N2O2
Mol.Wt.: 204.2
Inv. Status: In Stock

N-Acetyl-DL-Tryptophan

Picture of N-Acetyl-DL-Tryptophan
SZ CAT No:: SZ-T001002
CAS No: 87-32-1
Mol.F.: C13H14N2O3
Mol.Wt.: 246.3
Inv. Status: In Stock

Tryptophan EP Impurity A

Picture of Tryptophan EP Impurity A
SZ CAT No:: SZ-T001020
CAS No: 132685-02-0
Mol.F.: C24H26N4O4
Mol.Wt.: 434.4
Inv. Status: In Stock

Tryptophan EP Impurity D

Picture of Tryptophan EP Impurity D
SZ CAT No:: SZ-T001005
CAS No: 4350-09-8
Mol.F.: C11H12N2O3
Mol.Wt.: 220.2
Inv. Status: In Stock

Tryptophan USP Related Compound B

Picture of Tryptophan USP Related Compound B
SZ CAT No:: SZ-T001007
CAS No: 1218-34-4
Mol.F.: C13H14N2O3
Mol.Wt.: 246.3
Inv. Status: In Stock

D-tryptophyl-D-tryptophan

Picture of D-tryptophyl-D-tryptophan
SZ CAT No:: SZ-T001003
CAS No: 58607-72-0
Mol.F.: C22H22N4O3
Mol.Wt.: 390.4
Inv. Status: Custom Synthesis

Fmoc-alpha methyl Tryptophan

Picture of Fmoc-alpha methyl Tryptophan
SZ CAT No:: SZ-T001018
CAS No: 112913-63-0
Mol.F.: C27H24N2O4
Mol.Wt.: 440.5
Inv. Status: Custom Synthesis

Indole-3-Carboxyaldehyde

Picture of Indole-3-Carboxyaldehyde
SZ CAT No:: SZ-T001004
CAS No: 487-89-8
Mol.F.: C9H7NO
Mol.Wt.: 145.2
Inv. Status: Custom Synthesis

N-Carbamyltryptophan

Picture of N-Carbamyltryptophan
SZ CAT No:: SZ-T001025
CAS No: 54896-75-2
Mol.F.: C12H13N3O3
Mol.Wt.: 247.3
Inv. Status: Custom Synthesis

Tryptophan Cyclized Impurity

Picture of Tryptophan Cyclized Impurity
SZ CAT No:: SZ-T001024
CAS No: 40856-80-2
Mol.F.: C12H11N3O2
Mol.Wt.: 229.2
Inv. Status: Custom Synthesis

Tryptophan EP Impurity B

Picture of Tryptophan EP Impurity B
SZ CAT No:: SZ-T001008
CAS No: 184955-21-3
Mol.F.: C11H12N2O4
Mol.Wt.: 236.2
Inv. Status: Custom Synthesis

Tryptophan EP Impurity C

Picture of Tryptophan EP Impurity C
SZ CAT No:: SZ-T001009
CAS No: 2922-83-0
Mol.F.: C10H12N2O3
Mol.Wt.: 208.2
Inv. Status: Custom Synthesis
Rel. CAS No: 117269-81-5 (dihydrobromide salt)

Tryptophan EP Impurity E

Picture of Tryptophan EP Impurity E
SZ CAT No:: SZ-T001010
CAS No: 3978-11-8
Mol.F.: C11H12N2O4
Mol.Wt.: 236.2
Inv. Status: Custom Synthesis

Tryptophan EP Impurity F

Picture of Tryptophan EP Impurity F
SZ CAT No:: SZ-T001011
CAS No: 145545-23-9
Mol.F.: C9H12N2O2
Mol.Wt.: 180.2
Inv. Status: Custom Synthesis
Rel. CAS No: 2639388-96-6 (dihydrochloride salt)

Tryptophan EP Impurity G

Picture of Tryptophan EP Impurity G
SZ CAT No:: SZ-T001012
CAS No: 21704-80-3
Mol.F.: C11H12N2O3
Mol.Wt.: 220.2
Inv. Status: Custom Synthesis
Rel. CAS No: 881025-90-7 (Hydrochloride salt)

Tryptophan EP Impurity H

Picture of Tryptophan EP Impurity H
SZ CAT No:: SZ-T001013
CAS No: 6052-68-2
Mol.F.: C12H12N2O2
Mol.Wt.: 216.2
Inv. Status: Custom Synthesis

Tryptophan EP Impurity I

Picture of Tryptophan EP Impurity I
SZ CAT No:: SZ-T001014
CAS No: 5470-37-1
Mol.F.: C13H14N2O2
Mol.Wt.: 230.3
Inv. Status: Custom Synthesis
Rel. CAS No: 200561-30-4 (hydrate)

Tryptophan EP Impurity J

Picture of Tryptophan EP Impurity J
SZ CAT No:: SZ-T001015
CAS No: 164068-19-3
Mol.F.: C22H23N3O4
Mol.Wt.: 393.4
Inv. Status: Custom Synthesis

Tryptophan EP Impurity K

Picture of Tryptophan EP Impurity K
SZ CAT No:: SZ-T001016
CAS No: 149724-31-2
Mol.F.: C20H19N3O2
Mol.Wt.: 333.4
Inv. Status: Custom Synthesis

Tryptophan EP Impurity L

Picture of Tryptophan EP Impurity L
SZ CAT No:: SZ-T001017
CAS No: 287170-99-4
Mol.F.: C21H19N3O2
Mol.Wt.: 345.4
Inv. Status: Custom Synthesis

Tryptophan Impurity 1

Picture of Tryptophan Impurity 1
SZ CAT No:: SZ-T001026
CAS No: 678996-63-9
Mol.F.: C25H30N4O3
Mol.Wt.: 434.5
Inv. Status: Custom Synthesis

Tryptophan Impurity 2

Picture of Tryptophan Impurity 2
SZ CAT No:: SZ-T001027
CAS No: 27018-75-3
Mol.F.: C19H19N3O3
Mol.Wt.: 337.4
Inv. Status: Custom Synthesis

4-Bromo-L-tryptophan

Picture of 4-Bromo-L-tryptophan
SZ CAT No:: SZ-T001036
CAS No: 52448-16-5
Mol.F.: C11H11BrN2O2
Mol.Wt.: 283.1
Inv. Status: Under Synthesis

4-Chloro-L-tryptophan

Picture of 4-Chloro-L-tryptophan
SZ CAT No:: SZ-T001035
CAS No: 52448-14-3
Mol.F.: C11H11ClN2O2
Mol.Wt.: 238.7
Inv. Status: Under Synthesis

4-Hydroxy Tryptamine

Picture of 4-Hydroxy Tryptamine
SZ CAT No:: SZ-T001030
CAS No: 570-14-9
Mol.F.: C10H12N2O
Mol.Wt.: 176.2
Inv. Status: Under Synthesis
Rel. CAS No: 2941323-42-6 (hydrate) ; 2742660-33-7 (HCl salt) ; 2770029-51-9 (potassium salt) ; 2941323-11-9 (sulfate salt) ; 53792-90-8 (oxalate salt)

4-Methoxy-L-tryptophan

Picture of 4-Methoxy-L-tryptophan
SZ CAT No:: SZ-T001037
CAS No: 406938-53-2
Mol.F.: C12H14N2O3
Mol.Wt.: 234.3
Inv. Status: Under Synthesis
Rel. CAS No: 1637221-39-6 (HCl salt)

Baeocystin

Picture of Baeocystin
SZ CAT No:: SZ-T001029
CAS No: 21420-58-6
Mol.F.: C11H15N2O4P
Mol.Wt.: 270.2
Inv. Status: Under Synthesis
Rel. CAS No: 2941322-77-4 (hydrate) ; 2941322-74-1 (HCl salt) ; 2941322-43-4 (sulfate salt) ; 2941322-51-4 (mesylate salt)

L-Tryptophan Methyl Ester Hydrochloride

Picture of L-Tryptophan Methyl Ester Hydrochloride
SZ CAT No:: SZ-T001028
CAS No: 7524-52-9
Mol.F.: C12H14N2O2 : HCl
Mol.Wt.: 218.3 : 36.5
Inv. Status: Under Synthesis

Norbaeocystin

Picture of Norbaeocystin
SZ CAT No:: SZ-T001031
CAS No: 21420-59-7
Mol.F.: C10H13N2O4P
Mol.Wt.: 256.2
Inv. Status: Under Synthesis

Tryptophan Impurity 3

Picture of Tryptophan Impurity 3
SZ CAT No:: SZ-T001032
CAS No: 149818-23-5
Mol.F.: C10H11N3O2
Mol.Wt.: 205.2
Inv. Status: Under Synthesis

Tryptophan Impurity 4

Picture of Tryptophan Impurity 4
SZ CAT No:: SZ-T001033
CAS No: 149704-63-2
Mol.F.: C10H11N3O2
Mol.Wt.: 205.2
Inv. Status: Under Synthesis

Tryptophan Impurity 5

Picture of Tryptophan Impurity 5
SZ CAT No:: SZ-T001034
CAS No: 2305185-20-8
Mol.F.: C25H21N3O4
Mol.Wt.: 427.5
Inv. Status: Under Synthesis

Possible Nitroso Standards

N-Acetyl-N-nitroso-tryptophan

Picture of N-Acetyl-N-nitroso-tryptophan
SZ CAT No:: SZ-T001023
CAS No: 53602-74-7
Mol.F.: C13H13N3O4
Mol.Wt.: 275.3
Inv. Status: In Stock

N-Nitroso D-Tryptophan

Picture of N-Nitroso D-Tryptophan
SZ CAT No:: SZ-T001006
CAS No: NA
Mol.F.: C11H11N3O3
Mol.Wt.: 233.2
Inv. Status: Custom Synthesis

N-Nitroso Tryptophan

Picture of N-Nitroso Tryptophan
SZ CAT No:: SZ-T001021
CAS No: 68807-89-6
Mol.F.: C11H11N3O3
Mol.Wt.: 233.2
Inv. Status: Custom Synthesis
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