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Amino acids and derivatives

5-Hydroxydopa

Also known as 3,4,5-Trihydroxyphenylalanine, 3,5-Dihydroxytyrosine, 5-OH-Dopa

CAS 16032-83-0Formula C9H11NO5Molar mass 213.19 g/mol
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5-Hydroxydopa chemical structure, C9H11NO5, CAS 16032-83-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
16032-83-0
Formula
C9H11NO5
Molar mass
213.19 g/mol
HS code
292250
Category
Amino acids and derivatives

What is 5-Hydroxydopa?

Plain description, key identifiers and synonyms

3,5-Dihydroxytyrosine has been reported in Stomphia coccinea, Urticina felina, and Metridium senile.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-amino-3-(3,4,5-trihydroxyphenyl)propanoic acid
CAS number
16032-83-0 CAS number cross-checkedOther or deprecated CAS: 18674-59-4
Molecular formula
C9H11NO5
UNII
RU27HMS63Y
InChIKey
KQZQZOQFUQXPLW-YFKPBYRVSA-N
InChI
InChI=1S/C9H11NO5/c10-5(9(14)15)1-4-2-6(11)8(13)7(12)3-4/h2-3,5,11-13H,1,10H2,(H,14,15)/t5-/m0/s1
Canonical SMILES
NC(Cc1cc(O)c(O)c(O)c1)C(=O)O
Isomeric SMILES
C1=C(C=C(C(=C1O)O)O)C[C@@H](C(=O)O)N

Synonyms

  • 3,4,5-Trihydroxyphenylalanine
  • 3,5-Dihydroxytyrosine
  • 5-OH-Dopa
  • (2S)-2-amino-3-(3,4,5-trihydroxyphenyl)propanoic acid
  • 3,4,5-TOPA
  • 3,5-dihydroxy-l-tyrosine
  • L-Tyrosine, 3,5-dihydroxy-
  • 3,4,5-trihydroxy-l-phenylalanine
  • 2-Amino-3-(3,4,5-trihydroxyphenyl)propanoic acid, (2S)-
  • Tyrosine, 3,5-dihydroxy-

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
213.19 g/molcalc.
Exact mass
213.0637 Dacalc.
LogP (octanol/water)
-0.24calc.
Topological polar surface area
124 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
3calc.
Heavy atoms
15calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.22calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 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.

5-Hydroxydopa suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

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5-Hydroxydopa 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 5-Hydroxydopa is traded under.

HS 2922.50Indicative HS code

Amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function

World exports in 2024
$3.29B
−5.9% vs 2023, imports $3.19B
2019 to 2024
Top exporters
  1. China39.2%
  2. United Kingdom27.1%
  3. India * partner reported4.8%
Top importers
  1. United States20.7%
  2. Germany7.6%
  3. Italy6.6%

* Partner reported figures, a lower bound.

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

The HS code shown for 5-Hydroxydopa is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 5-Hydroxydopa, based on the data on this page

What is 5-Hydroxydopa?

3,5-Dihydroxytyrosine has been reported in Stomphia coccinea, Urticina felina, and Metridium senile.

What is the CAS number of 5-Hydroxydopa?

The CAS registry number of 5-Hydroxydopa is 16032-83-0. Other or deprecated CAS numbers: 18674-59-4.

What is the molecular formula and weight of 5-Hydroxydopa?

The molecular formula of 5-Hydroxydopa is C9H11NO5 and its molar mass is 213.19 g/mol.

Is 5-Hydroxydopa hazardous?

No GHS hazard classification for 5-Hydroxydopa 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 5-Hydroxydopa?

5-Hydroxydopa is usually classified under HS code 292250 (Amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 5-Hydroxydopa?

Post a free request on CompoundList and suppliers of 5-Hydroxydopa will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 5-Hydroxydopa?

Suppliers quote 5-Hydroxydopa 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 5-Hydroxydopa

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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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