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In-can and dry-film biocides

Irgarol

Also known as Cybutryne, Irgarol 1051, 1,3,5-Triazine-2,4-diamine, N-cyclopropyl-N'-(1,1-dimethylethyl)-6-(methylthio)-

CAS 28159-98-0Formula C11H19N5SMolar mass 253.38 g/molEC 248-872-3
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 10 suppliers listed
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Irgarol chemical structure, C11H19N5S, CAS 28159-98-0
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals from water
Melting point
128 to 133
Solubility
In water, 7 mg/L
HS code
293369
Category
In-can and dry-film biocides
Illustrative photo, a shrink wrapped pallet of kraft paper sacks in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Irgarol?

Plain description, key identifiers and synonyms

Irgarol 1051 is a diamino-1,3,5-triazine that is 1,3,5-triazine-2,4-diamine carrying a N-tert-butyl, N'-cyclopropyl and a methylsulfanyl group at position 6. It has a role as a xenobiotic, an antifouling biocide and an environmental contaminant. It is an aryl sulfide, a diamino-1,3,5-triazine and a member of cyclopropanes. It is functionally related to a 1,3,5-triazine-2,4-diamine. It derives from a hydride of a 1,3,5-triazine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-N-tert-butyl-4-N-cyclopropyl-6-methylsulfanyl-1,3,5-triazine-2,4-diamine
CAS number
28159-98-0 CAS number cross-checked
EC number
248-872-3
Molecular formula
C11H19N5S
UNII
E7B77O21GH
MDL number
MFCD01863779
InChIKey
HDHLIWCXDDZUFH-UHFFFAOYSA-N
InChI
InChI=1S/C11H19N5S/c1-11(2,3)16-9-13-8(12-7-5-6-7)14-10(15-9)17-4/h7H,5-6H2,1-4H3,(H2,12,13,14,15,16)
SMILES (canonical and isomeric)
CC(C)(C)NC1=NC(=NC(=N1)NC2CC2)SC

Synonyms

  • Cybutryne
  • Irgarol 1051
  • 1,3,5-Triazine-2,4-diamine, N-cyclopropyl-N'-(1,1-dimethylethyl)-6-(methylthio)-
  • N-tert-butyl-N'-cyclopropyl-6-(methylsulfanyl)-1,3,5-triazine-2,4-diamine
  • N2-(tert-Butyl)-N4-cyclopropyl-6-(methylthio)-1,3,5-triazine-2,4-diamine
  • 2-(tert-Butylamino)-4-(cyclopropylamino)-6-(methylthio)-1,3,5-triazine
  • 2-(tert-Butylamino)-4-(cyclopropylamino)-6-(methylthio)-s-triazine
  • 2-N-tert-butyl-4-N-cyclopropyl-6-methylsulfanyl-1,3,5-triazine-2,4-diamine
  • N'-tert-Butyl-N-cyclopropyl-6-(methylthio)-1,3,5-triazine-2,4-diamine
  • 2-Methylthio-4-tert-butylamino-6-cyclopropylamino-S-triazine
  • 2-(tert-Butylamino)-4-(cyclopropylamino)-6-(methylthio)-135-triazine
  • N2-tert-butyl-N4-cyclopropyl-6-methylsulfanyl-1,3,5-triazine-2,4-diamine
  • Irgarol 1051 10 |Ig/mL in Cyclohexane
  • Irgarol 1051 10 microg/mL in Cyclohexane
  • Irgarol 1051 100 microg/mL in Cyclohexane
  • Irgarol(R), PESTANAL(R), analytical standard
  • 2-methylthio-4-t-butylamino-6-cyclopropylamino-s-triazine
  • N-tert-Butyl-N-cyclopropyl-6-(methylthio)-1,3,5-triazine-2,4-diamine
  • N(sup 2)-tert-butyl-n(sup 4)-cyclopropyl-6-methylthio-1,3,5-triazine-2,4-diamine
  • n-cyclopropyl-n'-(1,1-dimethylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine
  • N~2~-tert-Butyl-N~4~-cyclopropyl-6-(methylsulfanyl)-1,3,5-triazine-2,4-diamine
  • 2-(tert-Butylamino)-4-(cyclopropylamino)-6-(methylthio)-s-triazine Solution in Methanol, 1000ug/mL
  • 2-(tert-Butylamino)-4-(cyclopropylamino)-6-(methylthio)-s-triazine Solution in Methanol, 100ug/mL

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

Appearance
Crystals from waterexp.
Melting point
128 to 133exp.
Solubility
In water, 7 mg/Lexp.
Vapour pressure
6.6 × 10⁻⁷ mm Hgexp.

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
253.38 g/molcalc.
Exact mass
253.1361 Dacalc.
LogP (octanol/water)
2.38calc.
Topological polar surface area
62.73 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
4calc.
Heavy atoms
17calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.73calc.
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, c1ncnc(NC2CC2)n1

c1ncnc(NC2CC2)n1

2 rings, 10 atoms.

30 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H317May cause an allergic skin reaction.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (10)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Irgarol suppliers

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

All 10 suppliers
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Where suppliers are based

10 suppliers in 3 countries

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Irgarol price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Booster algicide in antifouling paint.

Use classes: Algistats, Herbicides, Pesticides.

Industries and functions

Roles

  • antifouling biocide
  • environmental contaminant
  • pesticide
  • xenobiotic

Functional uses

  • Biocide

How it is made

Preparation: D. Berrer, C. Vogel, Germany patent 1914014 (1969 to Agripat), eidem, United States of America patent 3629256 (1971 to Geigy).

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 Irgarol is traded under.

HS 2933.69Indicative HS code

Compounds containing an unfused triazine ring (whether or not hydrogenated) in the…

World exports in 2024
$2.46B
+1.8% vs 2023, imports $2.44B
2019 to 2024
Top exporters
  1. China53.6%
  2. Germany11.5%
  3. India * partner reported8.4%
Top importers
  1. United States13.5%
  2. Brazil9.6%
  3. Germany9.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Irgarol?

Irgarol 1051 is a diamino-1,3,5-triazine that is 1,3,5-triazine-2,4-diamine carrying a N-tert-butyl, N'-cyclopropyl and a methylsulfanyl group at position 6. It has a role as a xenobiotic, an antifouling biocide and an environmental contaminant.

What is the CAS number of Irgarol?

The CAS registry number of Irgarol is 28159-98-0.

What is the molecular formula and weight of Irgarol?

The molecular formula of Irgarol is C11H19N5S and its molar mass is 253.38 g/mol.

What is Irgarol used for?

Booster algicide in antifouling paint. Use classes: Algistats, Herbicides, Pesticides.

Is Irgarol hazardous?

Irgarol carries the GHS signal word "Warning". Main hazards: may cause an allergic skin reaction, very toxic to aquatic life, very toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Irgarol?

Irgarol is usually classified under HS code 293369 (Compounds containing an unfused triazine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Irgarol?

CompoundList lists 10 suppliers of Irgarol in China, Canada 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 Irgarol?

Suppliers quote Irgarol 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 Irgarol

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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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