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Insecticides and acaricides

Quinalphos

Also known as Bayrusil, Ekalux, Diethquinalphion

CAS 13593-03-8Formula C12H15N2O3PSMolar mass 298.30 g/molEC 237-031-6
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Hazardous to the environment 11 suppliers listed
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Quinalphos chemical structure, C12H15N2O3PS, CAS 13593-03-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
13593-03-8
Formula
C12H15N2O3PS
Molar mass
298.30 g/mol
EC number
237-031-6
HS code
293399
Category
Insecticides and acaricides

What is Quinalphos?

Plain description, key identifiers and synonyms

Quinalphos is an organothiophosphate insecticide and an organic thiophosphate. It has a role as an acaricide, an agrochemical and an EC 3.1.1.7 (acetylcholinesterase) inhibitor. It is functionally related to a quinoxalin-2-ol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
diethoxy-quinoxalin-2-yloxy-sulfanylidene-λ5-phosphane
CAS number
13593-03-8 CAS number cross-checked
EC number
237-031-6
Molecular formula
C12H15N2O3PS
UNII
26S837727Y
MDL number
MFCD00078719
InChIKey
JYQUHIFYBATCCY-UHFFFAOYSA-N
InChI
InChI=1S/C12H15N2O3PS/c1-3-15-18(19,16-4-2)17-12-9-13-10-7-5-6-8-11(10)14-12/h5-9H,3-4H2,1-2H3
SMILES (canonical and isomeric)
CCOP(=S)(OCC)OC1=NC2=CC=CC=C2N=C1

Synonyms

  • Bayrusil
  • Ekalux
  • Diethquinalphion
  • Quinaltaf
  • O,O-Diethyl O-quinoxalin-2-yl phosphorothioate
  • Phosphorothioic acid, O,O-diethyl O-2-quinoxalinyl ester
  • Kinalux
  • Oleoekalux
  • Phosphorothioic acid, O,O-diethyl O-(2-quinoxalinyl) ester
  • O,O-Diethyl O-2-quinoxalinyl phosphorothioic acid ester
  • O,O-Diethyl O-(2-quinoxalyl) phosphorothionate
  • diethylquinalphione
  • O,O-diethyl-O-(quinoxalyl)phosphorothioate
  • O,O-diethyl-O-(quinoxalinyl-(2))thionophosphate
  • Savall
  • Bayer 77049
  • Wie oben
  • Sandoz 6538
  • Diethchinalphion
  • SRA 7312
  • BAY 77049
  • Diethyl O-(2-quinoxalyl) phosphorothioate
  • O,O-diethyl O-(quinoxalin-2-yl) phosphorothioate
  • Diethyl O-(quinoxalin-2-yl) thiophosphate
  • Chinalphos
Show all 37 synonyms
  • o,o-Diethyl O-2-quinoxalinyl phosphorothioate
  • Diethquinalphione
  • Diethyl 2-Quinoxalyl phosphorothionate
  • O,O-diethyl O-quinoxalin-2-yl thiophosphate
  • Quinalphos 25 EC
  • Ekalux 25EC
  • Spencer S-6538
  • SAN 6538 I
  • SAN 6626 I
  • BAY 5821
  • ENT 27394
  • Quinolphos

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
298.30 g/molcalc.
Exact mass
298.0541 Dacalc.
LogP (octanol/water)
3.31calc.
Topological polar surface area
53.47 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
6calc.
Heavy atoms
19calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.33calc.
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, c1ccc2nccnc2c1

c1ccc2nccnc2c1

2 rings, 10 atoms, the Quinoxaline ring system.

2,016 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)
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H312Harmful in contact with skin.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (13)
  • P264Wash skin thoroughly after handling.
  • 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.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P405Store locked up.
  • 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

Quinalphos 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 2 countries

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Quinalphos 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

Pharmacological actions

  • Insecticides

Roles

  • acaricide
  • agrochemical
  • enzyme inhibitor
  • pesticide

Pharmacology

Quinalphos is a synthetic organic thiophosphate compound and organophosphate acetylcholinesterase inhibitor that is used as a pesticide. It is characterized as a colorless crystalline solid, and exposure occurs by inhalation, ingestion, or contact.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 015-138-00-7

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Quinalphos is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Quinalphos?

Quinalphos is an organothiophosphate insecticide and an organic thiophosphate. It has a role as an acaricide, an agrochemical and an EC 3.1.1.7 (acetylcholinesterase) inhibitor. It is functionally related to a quinoxalin-2-ol.

What is the CAS number of Quinalphos?

The CAS registry number of Quinalphos is 13593-03-8.

What is the molecular formula and weight of Quinalphos?

The molecular formula of Quinalphos is C12H15N2O3PS and its molar mass is 298.30 g/mol.

What is Quinalphos used for?

Known uses and roles of Quinalphos include insecticides in agriculture and crop protection, acaricides and miticides in agriculture and crop protection, acaricide, agrochemical, enzyme inhibitor and 2 more.

Is Quinalphos hazardous?

Quinalphos carries the GHS signal word "Danger". Main hazards: toxic if swallowed, harmful in contact with skin, very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Quinalphos?

Quinalphos is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Quinalphos?

CompoundList lists 11 suppliers of Quinalphos in India and China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Quinalphos in India?

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

What is the price of Quinalphos?

Suppliers quote Quinalphos 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 Quinalphos

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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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