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Heterocyclic building blocks

Pyrazothion

Also known as Geigy G-24027, Methylpyrazolyl diethylthiophosphate, ENT 25,557-X

CAS 108-35-0Formula C8H15N2O3PSMolar mass 250.26 g/mol
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Pyrazothion chemical structure, C8H15N2O3PS, CAS 108-35-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
108-35-0
Formula
C8H15N2O3PS
Molar mass
250.26 g/mol
HS code
293319
Category
Heterocyclic building blocks

What is Pyrazothion?

Plain description, key identifiers and synonyms

Pyrazothion is a chemical substance with the molecular formula C8H15N2O3PS and a molar mass of 250.26 g/mol. Its CAS registry number is 108-35-0. The IUPAC name is diethoxy-[(5-methyl-1H-pyrazol-3-yl)oxy]-sulfanylidene-λ5-phosphane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
diethoxy-[(5-methyl-1H-pyrazol-3-yl)oxy]-sulfanylidene-λ5-phosphane
CAS number
108-35-0 CAS number cross-checked
Molecular formula
C8H15N2O3PS
UNII
L0HUM41IX2
InChIKey
NKADQNIAHIXOIZ-UHFFFAOYSA-N
InChI
InChI=1S/C8H15N2O3PS/c1-4-11-14(15,12-5-2)13-8-6-7(3)9-10-8/h6H,4-5H2,1-3H3,(H,9,10)
SMILES (canonical and isomeric)
CCOP(=S)(OCC)OC1=NNC(=C1)C

Synonyms

  • Geigy G-24027
  • Methylpyrazolyl diethylthiophosphate
  • ENT 25,557-X
  • Diethyl 3-methyl-5-pyrazolyl thionophosphate
  • O,O-Diethyl O-(3-methyl-5-pyrazolyl) phosphorothionate
  • 4-23-00-02424 (Beilstein Handbook Reference)
  • Phosphorothioic acid, O,O-diethyl O-(3-methyl-1H-pyrazol-5-yl) ester
  • Phosphorothioic acid, O,O-diethyl-O-(5-methyl-3-pyrazolyl) ester
  • O,O-Diethyl o-3-methylpyrazol-5-yl phosphorothioate
  • O,O-Diethyl o-(3-methyl-1H-pyrazol-5-yl) phosphorothioate
  • O,O-diethyl O-(5-methyl-1H-pyrazol-3-yl) phosphorothioate

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
250.26 g/molcalc.
Exact mass
250.0541 Dacalc.
LogP (octanol/water)
2.39calc.
Topological polar surface area
56.37 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
6calc.
Heavy atoms
15calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.63calc.
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, c1cn[nH]c1

c1cn[nH]c1

1 ring, 5 atoms, the Pyrazole ring system.

40,521 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Pyrazothion suppliers

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Pyrazothion 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

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 Pyrazothion is traded under.

HS 2933.19Indicative HS code

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

World exports in 2024
$3.44B
−22.6% vs 2023, imports $6.66B
2019 to 2024
Top exporters
  1. China21.6%
  2. Switzerland * partner reported20.5%
  3. Germany19.0%
Top importers
  1. Slovenia38.4%
  2. Portugal14.1%
  3. Brazil13.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Pyrazothion?

Pyrazothion is a chemical substance with the molecular formula C8H15N2O3PS and a molar mass of 250.26 g/mol. Its CAS registry number is 108-35-0. The IUPAC name is diethoxy-[(5-methyl-1H-pyrazol-3-yl)oxy]-sulfanylidene-λ5-phosphane.

What is the CAS number of Pyrazothion?

The CAS registry number of Pyrazothion is 108-35-0.

What is the molecular formula and weight of Pyrazothion?

The molecular formula of Pyrazothion is C8H15N2O3PS and its molar mass is 250.26 g/mol.

What is Pyrazothion used for?

Known uses and roles of Pyrazothion include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Pyrazothion hazardous?

No GHS hazard classification for Pyrazothion 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 Pyrazothion?

Pyrazothion is usually classified under HS code 293319 (Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Pyrazothion?

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

What is the price of Pyrazothion?

Suppliers quote Pyrazothion 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 Pyrazothion

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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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