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Insecticides and acaricides

Propaphos

Also known as Kayphosnac, Kayaphos, Propafos

CAS 7292-16-2Formula C13H21O4PSMolar mass 304.35 g/mol
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Propaphos chemical structure, C13H21O4PS, CAS 7292-16-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless liquid
Boiling point
175 to 177
Density
1.1504 @ 20 °C
Solubility
In water, 0.125 g/l @ 25 °C
HS code
293090
Category
Insecticides and acaricides
Illustrative photo, 200 litre steel drums of liquid in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Propaphos?

Plain description, key identifiers and synonyms

Propaphos is an organophosphate insecticide and a dialkyl aryl phosphate. It has a role as an agrochemical and an EC 3.1.1.7 (acetylcholinesterase) inhibitor. It is functionally related to a 4-(methylsulfanyl)phenol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(4-methylsulfanylphenyl) dipropyl phosphate
CAS number
7292-16-2 CAS number cross-checked
Molecular formula
C13H21O4PS
UNII
0U4CU57BYP
InChIKey
PWYIUEFFPNVCMW-UHFFFAOYSA-N
InChI
InChI=1S/C13H21O4PS/c1-4-10-15-18(14,16-11-5-2)17-12-6-8-13(19-3)9-7-12/h6-9H,4-5,10-11H2,1-3H3
SMILES (canonical and isomeric)
CCCOP(=O)(OCCC)OC1=CC=C(C=C1)SC

Synonyms

  • Kayphosnac
  • Kayaphos
  • Propafos
  • 4-Methylthiophenyl dipropyl phosphate
  • 4-(methylsulfanyl)phenyl dipropyl phosphate
  • O,O-Di-n-propyl-O-(4-methylthiophenyl)phosphate
  • Phosphoric acid, dipropyl 4-methylthiophenyl ester
  • (4-methylsulfanylphenyl) dipropyl phosphate
  • Phosphoric acid, 4-(methylthio)phenyl dipropyl ester
  • Propafos [ISO-French]
  • Phosphoric acid, p-(methylthio)phenyl dipropyl ester
  • Pwyiueffpnvcmw-uhfffaoysa-
  • Phosphoric acid, 4-(methylthio)phenyl dipropyl ester (9CI)
  • Propaphos 10 |Ig/mL in Isooctane
  • Propaphos 10 microg/mL in Isooctane
  • Propaphos 1000 |Ig/mL in Acetone
  • Propaphos 1000 microg/mL in Acetone
  • 4-(methylthio)phenyl dipropyl phosphate

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 liquidexp.
Boiling point
175 to 177exp.
Density
1.1504 @ 20 °Cexp.
Solubility
In water, 0.125 g/l @ 25 °Cexp.
Vapour pressure
0.12 mPa (9.0 × 10⁻⁷ mm Hg) @ 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
304.35 g/molcalc.
Exact mass
304.0898 Dacalc.
LogP (octanol/water)
4.75calc.
Topological polar surface area
44.76 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
9calc.
Heavy atoms
19calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.54calc.
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, 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 classification
Hazard pictograms

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

Propaphos suppliers

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Propaphos 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

Systemic insecticide with contact and stomach actions. Control of rice hoppers, rice leaf beetle, and rice water weevil.

Roles

  • agrochemical
  • enzyme inhibitor

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 Propaphos is traded under.

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Propaphos?

Propaphos is an organophosphate insecticide and a dialkyl aryl phosphate. It has a role as an agrochemical and an EC 3.1.1.7 (acetylcholinesterase) inhibitor. It is functionally related to a 4-(methylsulfanyl)phenol.

What is the CAS number of Propaphos?

The CAS registry number of Propaphos is 7292-16-2.

What is the molecular formula and weight of Propaphos?

The molecular formula of Propaphos is C13H21O4PS and its molar mass is 304.35 g/mol.

What is Propaphos used for?

Systemic insecticide with contact and stomach actions. Control of rice hoppers, rice leaf beetle, and rice water weevil.

Is Propaphos hazardous?

No GHS hazard classification for Propaphos 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 Propaphos?

Propaphos is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Propaphos?

Post a free request on CompoundList and suppliers of Propaphos will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Propaphos?

Suppliers quote Propaphos 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 Propaphos

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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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