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Herbicides

Dinoseb

Also known as 2-sec-Butyl-4,6-dinitrophenol, Premerge, Dytop

CAS 88-85-7Formula C10H12N2O5Molar mass 240.22 g/molEC 201-861-7
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Serious health hazard, Hazardous to the environment Controlled, licensed buyers only
Request as a licensed buyer Safety data
Dinoseb chemical structure, C10H12N2O5, CAS 88-85-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Yellow crystals
Melting point
38 to 42
Boiling point
332 °C
Density
Relative density (water = 1): 1.3 (30 °C)
Flash point
15.6 °C
HS code
290891
Category
Herbicides
UN number
UN 2779

What is Dinoseb?

Plain description, key identifiers and synonyms

2-(butan-2-yl)-4,6-dinitrophenol is a dinitrophenol that is 2,4-dinitrophenol substituted by a butan-2-yl group at position 2.

Dinoseb is a chemical compound used as a herbicide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-butan-2-yl-4,6-dinitrophenol
CAS number
88-85-7 CAS number cross-checked
EC number
201-861-7
Molecular formula
C10H12N2O5
UNII
YD44ZEM22M
MDL number
MFCD00024246
InChIKey
OWZPCEFYPSAJFR-UHFFFAOYSA-N
InChI
InChI=1S/C10H12N2O5/c1-3-6(2)8-4-7(11(14)15)5-9(10(8)13)12(16)17/h4-6,13H,3H2,1-2H3
SMILES (canonical and isomeric)
CCC(C)C1=C(C(=CC(=C1)[N+](=O)[O-])[N+](=O)[O-])O

Synonyms

  • 2-sec-Butyl-4,6-dinitrophenol
  • Premerge
  • Dytop
  • Laseb
  • 2-(1-Methylpropyl)-4,6-dinitrophenol
  • DNBP
  • Dnosbp
  • DNSBP
  • 4,6-Dinitro-2-sec-butylphenol
  • Ladob
  • DBNF
  • Hel-fire
  • Dow general weed killer
  • Dinitrobutylphenol
  • Dow selective weed killer
  • Knox-weed
  • 4,6-Dinitro-o-sec-butylphenol
  • 2,4-Dinitro-6-sec-butylphenol
  • Gebutox, knox-weed
  • BNP 20
  • BNP 30
  • Ent 1,122
  • Sinox general
  • 2,4-Dinitro-6-(1-methylpropyl)phenol
  • Dinitro-ortho-sec-butyl phenol
Show all 38 synonyms
  • DN 289
  • Phenol, 2-sec-butyl-4,6-dinitro-
  • 4,6-Dinitro-2-sec.butylfenol
  • Phenol, 2-(1-methylpropyl)-4,6-dinitro-
  • 6-sec-Butyl-2,4-dinitrophenol
  • 6-(1-Methyl-propyl)-2,4-dinitrofenol
  • 6-(1-Metil-propil)-2,4-dinitro-fenolo
  • Premerge 3
  • 2,4-Dinitro-6-(1-methyl-propyl)phenol
  • 2-[1-methylpropyl]-4,6-dinitrophenol
  • (rs)-2-sec-Butyl-4,6-dinitrophenol
  • Butaphene
  • Hivertox

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
Yellow crystalsexp.
Odour
PUNGENT ODORexp.
Melting point
38 to 42exp.
Boiling point
332 °Cexp.
Density
Relative density (water = 1): 1.3 (30 °C)exp.
Flash point
15.6 °Cexp.
Solubility
0.0052 G/100 G WATER, 48 G/100 G ETHANOL, 27 G/100 G N-HEPTANE, MISCIBLE IN ETHYL ETHER, TOLUENE, & XYLENEexp.
Vapour pressure
1 MM HG @ 151.1 °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
240.22 g/molcalc.
Exact mass
240.0746 Dacalc.
LogP (octanol/water)
2.72calc.
Topological polar surface area
106.5 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
17calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.4calc.
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

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
  • H319Causes serious eye irritation.
  • H360DfMay damage the unborn child. Suspected of damaging fertility.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (19)
  • P203Obtain, read and follow all safety instructions before use.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P318If exposed or concerned, get medical advice.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P337 + P317If eye irritation persists: Get medical help.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 2779
Transport hazard class
6.1
Packing group
II

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

Dinoseb suppliers

Controlled substance, listings of documented suppliers only, in the documented ranking

Pic

Dinoseb is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: Rotterdam Convention Annex III prior informed consent chemical, HS 2022 subheading 2908.91 (dinoseb)

Our policy on controlled substances
No documented supplier lists it yet

Licensed buyers can post a request for Dinoseb with their licence. Our compliance team reviews it before suppliers see it.

Request as a licensed buyer

Dinoseb 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

Miticide (Former use).

Insecticide or ovicide but must be used in the dormant growth season or as a salt form to reduce toxicity. Herbicide for preemergence treatment. (Former use).

Industrial uses: Chemical reaction regulator.

Use classes: Herbicides, Pharmaceuticals.

Pharmacological actions

  • Herbicides
  • Insecticides
  • Pesticides

Roles

  • environmental contaminant
  • herbicide
  • pesticide
  • xenobiotic

Functional uses

  • Biocide

How it is made

Produced by nitration of 2-sec-butylphenol, obtained by the reaction of but-2-ene with phenol & separation of the 4-alkyl isomer.

BY SULFONATION OF PHENOL TO BLOCK p-POSITION, FOLLOWED BY BUTYLATION & REMOVAL OF SULFONIC GROUP.

Reaction of o-sec-butylphenol with sulfuric acid & nitric acid

Regulatory status

Inventories, regulations and trade controls that list this substance

Pic

Dinoseb is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: Rotterdam Convention Annex III prior informed consent chemical, HS 2022 subheading 2908.91 (dinoseb)

Our policy on controlled substances

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 609-025-00-7

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Dinoseb, its salts and esters with the exception of those specified elsewhere in this list, Ref no: 684, Annex ref: II/684

Other lists

  • Other regulatory list

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 Dinoseb is traded under.

HS 2908.91Exact HS code

Dinoseb (ISO) and its salts

World exports in 2024
$8.65M
+0.4% vs 2023, imports $5.13M
2019 to 2024
Top exporters
  1. United Kingdom79.7%
  2. United States19.8%
  3. Belgium0.2%
Top importers
  1. Netherlands26.0%
  2. Poland25.5%
  3. France * partner reported13.6%

* Partner reported figures, a lower bound.

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

The HS code shown for Dinoseb is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Dinoseb?

2-(butan-2-yl)-4,6-dinitrophenol is a dinitrophenol that is 2,4-dinitrophenol substituted by a butan-2-yl group at position 2.

What is the CAS number of Dinoseb?

The CAS registry number of Dinoseb is 88-85-7.

What is the molecular formula and weight of Dinoseb?

The molecular formula of Dinoseb is C10H12N2O5 and its molar mass is 240.22 g/mol.

What is Dinoseb used for?

Miticide (Former use). Insecticide or ovicide but must be used in the dormant growth season or as a salt form to reduce toxicity. Herbicide for preemergence treatment. (Former use). Industrial uses: Chemical reaction regulator. Use classes: Herbicides, Pharmaceuticals.

Is Dinoseb hazardous?

Dinoseb carries the GHS signal word "Danger". Main hazards: toxic if swallowed, toxic in contact with skin, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dinoseb?

Dinoseb is usually classified under HS code 290891 (Dinoseb (ISO) and its salts). This is indicative, confirm it with your customs broker before shipping.

Can I buy Dinoseb on CompoundList?

Dinoseb is a controlled substance. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed by our compliance team before suppliers see it.

Guides for buyers

Practical guides that help when you source, ship or handle Dinoseb

Request as a licensed buyer

Upload your licence with the request. Our compliance team reviews it before the documented suppliers see it.
Request as a licensed buyer
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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