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Herbicides

Propazine

Also known as Gesamil, Prozinex, Milogard

CAS 139-40-2Formula C9H16ClN5Molar mass 229.72 g/molEC 109-875-4
GHS signal word: Warning. Pictograms: Serious health hazard, Hazardous to the environment 11 suppliers listed
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Propazine chemical structure, C9H16ClN5, CAS 139-40-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless powder
Melting point
229.7 °C
Density
1.162 g/cm³ at 20 °C
Solubility
In water, 8.6 mg/L at 22 °C
HS code
293369
Category
Herbicides
UN number
UN 3077
Illustrative photo, fine white powder in a clear glass bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Propazine?

Plain description, key identifiers and synonyms

Propazine is a diamino-1,3,5-triazine that is N,N'-di(propan-2-yl)-1,3,5-triazine-2,4-diamine substituted by a chloro group at position 6. It has a role as a herbicide, a xenobiotic and an environmental contaminant. It is a chloro-1,3,5-triazine and a diamino-1,3,5-triazine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
6-chloro-2-N,4-N-di(propan-2-yl)-1,3,5-triazine-2,4-diamine
CAS number
139-40-2 CAS number cross-checkedOther or deprecated CAS: 1655498-05-7
EC numbers
109-875-4, 205-359-9
Molecular formula
C9H16ClN5
UNII
UYP5U99Q5T
MDL number
MFCD00047341
InChIKey
WJNRPILHGGKWCK-UHFFFAOYSA-N
InChI
InChI=1S/C9H16ClN5/c1-5(2)11-8-13-7(10)14-9(15-8)12-6(3)4/h5-6H,1-4H3,(H2,11,12,13,14,15)
SMILES (canonical and isomeric)
CC(C)NC1=NC(=NC(=N1)Cl)NC(C)C

Synonyms

  • Gesamil
  • Prozinex
  • Milogard
  • Plantulin
  • Primatol P
  • Propazin
  • Propasin
  • 2-Chloro-4,6-bis(isopropylamino)-s-triazine
  • Propazine (herbicide)
  • Geigy 30,028
  • 2-Chloro-4,6-bis(isopropylamino)-1,3,5-triazine
  • Maxx 90
  • 6-Chloro-N,N'-bis(1-methylethyl)-1,3,5-triazine-2,4-diamine
  • 2,4-Bis(isopropylamino)-6-chloro-s-triazine
  • 6-Chloro-N,N'-diisopropyl-1,3,5-triazine-2,4-diyldiamine
  • s-Triazine, 2-chloro-4,6-bis(isopropylamino)-
  • GEIGY 30028
  • 6-chloro-N,N'-diisopropyl-1,3,5-triazine-2,4-diamine
  • 2-Chloro-4,6-di(isopropylamino)-1,3,5-triazine
  • 6-chloro-N,N'-di(propan-2-yl)-1,3,5-triazine-2,4-diamine
  • 6-chloro-N2,N4-bis(propan-2-yl)-1,3,5-triazine-2,4-diamine
  • 6-chloro-N,N'-(1-methylethyl)-[1,3,5]triazine-2,4-diamine
  • 6-chloro-N,N'-(1-methylethyl)-(1,3,5)triazine-2,4-diamine
  • Milo-pro
  • 2,4-Bis(isopropylamino)-6-chloro-1,3,5-triazine
Show all 36 synonyms
  • 6-chloro-N2,N4-diisopropyl-1,3,5-triazine-2,4-diamine
  • 2-Chlor-4,6-bis(isopropylamino)-s-triazine
  • 1,3,5-Triazine-2,4-diamine, 6-chloro-N,N'-bis(1-methylethyl)-
  • 6-chloro-2-N,4-N-di(propan-2-yl)-1,3,5-triazine-2,4-diamine
  • Propazine-d6 100 Amicrog/mL in Acetone
  • 1,3,5-Triazine-2,4-diamine, 6-chloro-N2,N4-bis(1-methylethyl)-
  • Propazin (VAN)
  • Milogard 4L
  • Milo-Pro 4L
  • 2,4-Bis(propylamino)-6-chlor-1,3,5-triazin
  • 6-Chloro-N2,N4-di-isopropyl-1,3,5-triazine-2,4-diamine

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
Colorless powderexp.
Melting point
229.7 °Cexp.
Density
1.162 g/cm³ at 20 °Cexp.
Solubility
In water, 8.6 mg/L at 22 °Cexp.
Vapour pressure
1.31 × 10⁻⁷ mm Hg at 25 °Cexp.

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
229.72 g/molcalc.
Exact mass
229.1094 Dacalc.
LogP (octanol/water)
2.17calc.
Topological polar surface area
62.73 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
15calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.67calc.
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, c1ncncn1

c1ncncn1

1 ring, 6 atoms, the 1,3,5-Triazine ring system.

1,908 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H351Suspected of causing cancer.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (7)
  • P203Obtain, read and follow all safety instructions before use.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3077
Transport hazard class
9
Packing group
III

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

Propazine suppliers

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

All 11 suppliers
11 of 11 offers

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

11 suppliers in 5 countries

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Propazine 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

For preemergence weed control in grain sorghum and container grown ornamentals in greenhouses. (Propazine 4L).

Selective post-emergence herbicide.

Pre-planting or pre-emergence control of grasses and broad-leaved weeds in sorghum and umbelliferous crops (carrots, chervil, parsley etc).

Use classes: Pesticides.

Pharmacological actions

  • Herbicides

Roles

  • environmental contaminant
  • herbicide
  • pesticide
  • xenobiotic

Functional uses

  • Biocide

How it is made

Propazine is produced by the reaction between cyanuric chloride and two equivalents of isopropylamine.

Produced by reaction of trichloro-1,3,5-triazine with 2 molecular proportions of isopropylamine in presence of acid acceptor, it forms colorless crystals ...

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 613-067-00-1

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Propazine, Ref no: 1018, Annex ref: II/1018

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Propazine 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 Propazine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Propazine?

Propazine is a diamino-1,3,5-triazine that is N,N'-di(propan-2-yl)-1,3,5-triazine-2,4-diamine substituted by a chloro group at position 6. It has a role as a herbicide, a xenobiotic and an environmental contaminant. It is a chloro-1,3,5-triazine and a diamino-1,3,5-triazine.

What is the CAS number of Propazine?

The CAS registry number of Propazine is 139-40-2. Other or deprecated CAS numbers: 1655498-05-7.

What is the molecular formula and weight of Propazine?

The molecular formula of Propazine is C9H16ClN5 and its molar mass is 229.72 g/mol.

What is Propazine used for?

For preemergence weed control in grain sorghum and container grown ornamentals in greenhouses. (Propazine 4L). Selective post-emergence herbicide. Pre-planting or pre-emergence control of grasses and broad-leaved weeds in sorghum and umbelliferous crops (carrots, chervil, parsley etc). Use classes: Pesticides.

Is Propazine hazardous?

Propazine carries the GHS signal word "Warning". Main hazards: suspected of causing cancer, 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 Propazine?

Propazine 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 Propazine?

CompoundList lists 11 suppliers of Propazine in China, United States, Germany, India and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Propazine in India?

1 supplier in India list Propazine on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Propazine?

Suppliers quote Propazine 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 Propazine

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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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