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Aromatic building blocks

Hydroxystilbamidine

Also known as Oxistilbamidinum, Hidroxiestilbamidina, 2-Hydroxy-4,4'-diguanylstilbene

CAS 495-99-8Formula C16H16N4OMolar mass 280.33 g/molEC 207-811-0
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Hydroxystilbamidine chemical structure, C16H16N4O, CAS 495-99-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
495-99-8
Formula
C16H16N4O
Molar mass
280.33 g/mol
EC number
207-811-0
HS code
292529
Category
Aromatic building blocks

What is Hydroxystilbamidine?

Plain description, key identifiers and synonyms

Hydroxystilbamidine is a stilbenoid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-[(E)-2-(4-carbamimidoylphenyl)ethenyl]-3-hydroxybenzenecarboximidamide
CAS number
495-99-8 CAS number cross-checkedOther or deprecated CAS: 1071752-67-4
EC number
207-811-0
Molecular formula
C16H16N4O
UNII
39J262E49W
InChIKey
TUESWZZJYCLFNL-DAFODLJHSA-N
InChI
InChI=1S/C16H16N4O/c17-15(18)12-5-2-10(3-6-12)1-4-11-7-8-13(16(19)20)9-14(11)21/h1-9,21H,(H3,17,18)(H3,19,20)/b4-1+
Canonical SMILES
N=C(N)c1ccc(C=Cc2ccc(C(=N)N)cc2O)cc1
Isomeric SMILES
C1=CC(=CC=C1/C=C/C2=C(C=C(C=C2)C(=N)N)O)C(=N)N

Synonyms

  • Oxistilbamidinum
  • Hidroxiestilbamidina
  • 2-Hydroxy-4,4'-diguanylstilbene
  • Idrossistilbamidina
  • Hydroxystilbamidinum
  • 2-Hydroxy-4,4'-stilbenedicarboxamidine
  • 4-((1E)-2-(4-carbamimidoylphenyl)ethenyl)-3-hydroxybenzene-1-carboximidamide
  • 4-[(E)-2-(4-carbamimidoylphenyl)ethenyl]-3-hydroxybenzenecarboximidamide
  • (E)-4-(4-carbamimidoylstyryl)-3-hydroxybenzimidamide
  • OHSA
  • (E)-hydroxystilbamidine
  • US11866416, Example 5
  • 4-[2-(4-carbamimidoylphenyl)ethenyl]-3-hydroxybenzene-1-carboximidamide
  • 4-[(E)-2-(4-carbamimidoylphenyl)ethenyl]-3-hydroxybenzene-1-carboximidamide
  • 4-[(E)-2-(4-Carbamimidoylphenyl)ethen-1-yl]-3-hydroxybenzene-1-carboximidamide
  • 4-[(E)-2-{4-[amino(imino)methyl]phenyl}ethenyl]-3-hydroxybenzenecarboximidamide
  • (4E)-4-[2-[4-(diaminomethylene)cyclohexa-2,5-dien-1-ylidene]ethylidene]-3-keto-cyclohexa-1,5-diene-1-carboxamidine, 2-hydroxyethanesulfonic acid
  • (4E)-4-[2-[4-(diaminomethylidene)-1-cyclohexa-2,5-dienylidene]ethylidene]-3-oxo-1-cyclohexa-1,5-dienecarboximidamide, 2-hydroxyethanesulfonic acid
  • (4E)-4-[2-[4-(diaminomethylidene)cyclohexa-2,5-dien-1-ylidene]ethylidene]-3-oxocyclohexa-1,5-diene-1-carboximidamide, 2-hydroxyethanesulfonic acid

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
280.33 g/molcalc.
Exact mass
280.1324 Dacalc.
LogP (octanol/water)
2.13calc.
Topological polar surface area
120 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
21calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
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, C(=Cc1ccccc1)c1ccccc1

C(=Cc1ccccc1)c1ccccc1

2 rings, 14 atoms, the Stilbene ring system.

2,005 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.

Hydroxystilbamidine suppliers

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

All 2 suppliers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

2 suppliers in 2 countries

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Hydroxystilbamidine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Pharmacology

Hydroxystilbamidine is a cationic dye with antifungal, antitrypanosomal, antimalarial, and carcinostatic activities. Hydroxystilbamidine is able to bind to DNA and RNA in a non-intercalating manner, and is a powerful inhibitor of ribonucleases, thereby impeding cellular processes in protozoa. This agent was also shown to bind to and stablize trypanosomal lysosomes. Hydroxystilbamidine is commonly used as a diagnostic agent in neuroanatomy and as a histochemical stain.

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 Hydroxystilbamidine is traded under.

HS 2925.29Indicative HS code

Imines and their derivatives, salts thereof, other

World exports in 2024
$1.8B
+12.4% vs 2023, imports $1.84B
2019 to 2024
Top exporters
  1. China35.9%
  2. France * partner reported15.5%
  3. Germany9.1%
Top importers
  1. United States13.3%
  2. China13.0%
  3. Brazil9.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Hydroxystilbamidine, based on the data on this page

What is Hydroxystilbamidine?

Hydroxystilbamidine is a stilbenoid.

What is the CAS number of Hydroxystilbamidine?

The CAS registry number of Hydroxystilbamidine is 495-99-8. Other or deprecated CAS numbers: 1071752-67-4.

What is the molecular formula and weight of Hydroxystilbamidine?

The molecular formula of Hydroxystilbamidine is C16H16N4O and its molar mass is 280.33 g/mol.

What is Hydroxystilbamidine used for?

Known uses and roles of Hydroxystilbamidine include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Hydroxystilbamidine hazardous?

No GHS hazard classification for Hydroxystilbamidine 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 Hydroxystilbamidine?

Hydroxystilbamidine is usually classified under HS code 292529 (Imines and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Hydroxystilbamidine?

CompoundList lists 2 suppliers of Hydroxystilbamidine in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Hydroxystilbamidine?

Suppliers quote Hydroxystilbamidine 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 Hydroxystilbamidine

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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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