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Amino acids and derivatives

7-Hydroxytryptophan

Also known as 2-amino-3-(7-hydroxy-1H-indol-3-yl)propanoic acid, 7-hydroxytryptophan, 7-Hydroxy-dl-tryptophan, 2-amino-3-(7-hydroxy-1H-indol-3-yl)propanoic Acid

CAS 52899-02-2Formula C11H12N2O3Molar mass 220.23 g/mol
1 supplier listed
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7-Hydroxytryptophan chemical structure, C11H12N2O3, CAS 52899-02-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
52899-02-2
Formula
C11H12N2O3
Molar mass
220.23 g/mol
HS code
293399
Category
Amino acids and derivatives

What is 7-Hydroxytryptophan?

Plain description, key identifiers and synonyms

7-hydroxytryptophan is a hydroxytryptophan substituted by a hydroxy group at position 7 on the indole ring. It has a role as a human urinary metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-amino-3-(7-hydroxy-1H-indol-3-yl)propanoic acid
CAS number
52899-02-2Other or deprecated CAS: 25198-02-1
Molecular formula
C11H12N2O3
InChIKey
VQSRKJZICBNQJG-UHFFFAOYSA-N
InChI
InChI=1S/C11H12N2O3/c12-8(11(15)16)4-6-5-13-10-7(6)2-1-3-9(10)14/h1-3,5,8,13-14H,4,12H2,(H,15,16)
SMILES (canonical and isomeric)
C1=CC2=C(C(=C1)O)NC=C2CC(C(=O)O)N

Synonyms

  • 2-amino-3-(7-hydroxy-1H-indol-3-yl)propanoic acid, 7-hydroxytryptophan
  • 7-Hydroxy-dl-tryptophan
  • 2-amino-3-(7-hydroxy-1H-indol-3-yl)propanoic Acid
  • 7-Hydroxy-tryptophan

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
220.23 g/molcalc.
Exact mass
220.0848 Dacalc.
LogP (octanol/water)
0.83calc.
Topological polar surface area
99.34 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
16calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.18calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc2[nH]ccc2c1

c1ccc2[nH]ccc2c1

2 rings, 9 atoms, the Indole ring system.

25,097 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

7-Hydroxytryptophan suppliers

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Where suppliers are based

1 supplier in 1 country

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7-Hydroxytryptophan price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • animal metabolite
  • eukaryotic metabolite
  • human metabolite
  • human urinary metabolite
  • mammalian metabolite
  • metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 7-Hydroxytryptophan is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for 7-Hydroxytryptophan is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 7-Hydroxytryptophan, based on the data on this page

What is 7-Hydroxytryptophan?

7-hydroxytryptophan is a hydroxytryptophan substituted by a hydroxy group at position 7 on the indole ring. It has a role as a human urinary metabolite.

What is the CAS number of 7-Hydroxytryptophan?

The CAS registry number of 7-Hydroxytryptophan is 52899-02-2. Other or deprecated CAS numbers: 25198-02-1.

What is the molecular formula and weight of 7-Hydroxytryptophan?

The molecular formula of 7-Hydroxytryptophan is C11H12N2O3 and its molar mass is 220.23 g/mol.

What is 7-Hydroxytryptophan used for?

Known uses and roles of 7-Hydroxytryptophan include animal metabolite, eukaryotic metabolite, human metabolite, human urinary metabolite, mammalian metabolite and 1 more.

Is 7-Hydroxytryptophan hazardous?

No GHS hazard classification for 7-Hydroxytryptophan is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of 7-Hydroxytryptophan?

7-Hydroxytryptophan is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 7-Hydroxytryptophan?

CompoundList lists 1 supplier of 7-Hydroxytryptophan in Germany. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 7-Hydroxytryptophan?

Suppliers quote 7-Hydroxytryptophan on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle 7-Hydroxytryptophan

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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