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Heterocyclic building blocks

Fospirate

Also known as Fospirato, Fospiratum, Dimethyl 3,5,6-trichloro-2-pyridyl phosphate

CAS 5598-52-7Formula C7H7Cl3NO4PMolar mass 306.47 g/molEC 803-787-6
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment
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Fospirate chemical structure, C7H7Cl3NO4P, CAS 5598-52-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5598-52-7
Formula
C7H7Cl3NO4P
Molar mass
306.47 g/mol
EC number
803-787-6
HS code
293339
Category
Heterocyclic building blocks

What is Fospirate?

Plain description, key identifiers and synonyms

Fospirate is a chemical substance with the molecular formula C7H7Cl3NO4P and a molar mass of 306.47 g/mol. Its CAS registry number is 5598-52-7. The IUPAC name is dimethyl (3,5,6-trichloro-2-pyridinyl) phosphate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dimethyl (3,5,6-trichloro-2-pyridinyl) phosphate
CAS number
5598-52-7 CAS number cross-checked
EC number
803-787-6
Molecular formula
C7H7Cl3NO4P
UNII
7DRC4KN503
InChIKey
XCBOKUAJQWDYNI-UHFFFAOYSA-N
InChI
InChI=1S/C7H7Cl3NO4P/c1-13-16(12,14-2)15-7-5(9)3-4(8)6(10)11-7/h3H,1-2H3
SMILES (canonical and isomeric)
COP(=O)(OC)OC1=NC(=C(C=C1Cl)Cl)Cl

Synonyms

  • Fospirato
  • Fospiratum
  • Dimethyl 3,5,6-trichloro-2-pyridyl phosphate
  • Phosphoric acid, dimethyl 3,5,6-trichloro-2-pyridinyl ester
  • Dimethyl-(3,5,6-trichloro-2-pyridyl) phosphate
  • Chlorpyrifos-methyl-oxon
  • dimethyl (3,5,6-trichloropyridin-2-yl) phosphate
  • Torelle
  • Fospirat
  • Fospirate methyl
  • Chlorpyrifos-methyl oxon
  • DOWCO 217
  • OMS 1168
  • ENT 27521
  • Dimethyl-3,5,6-trichlor-2-pyridylfosfat
  • dimethyl 3,5,6-trichloropyridin-2-yl phosphate
  • Phosphoric acid, dimethyl 3,5,6-trichloro-2-pyridyl ester
  • Fospirate (USAN/INN)
  • O,O-Dimethyl O-(3,5,6-trichloro-2-pyridyl) phosphate
  • Dimethyl 3,5,6-trichloro-2-pyridinyl 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

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
306.47 g/molcalc.
Exact mass
304.9178 Dacalc.
LogP (octanol/water)
3.82calc.
Topological polar surface area
57.65 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
16calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.29calc.
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, c1ccncc1

c1ccncc1

1 ring, 6 atoms, the Pyridine ring system.

118,162 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H400Very toxic to aquatic life.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P391Collect spillage.
  • 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

Fospirate suppliers

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Fospirate 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

Use classes: Insecticides.

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 Fospirate is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Fospirate?

Fospirate is a chemical substance with the molecular formula C7H7Cl3NO4P and a molar mass of 306.47 g/mol. Its CAS registry number is 5598-52-7. The IUPAC name is dimethyl (3,5,6-trichloro-2-pyridinyl) phosphate.

What is the CAS number of Fospirate?

The CAS registry number of Fospirate is 5598-52-7.

What is the molecular formula and weight of Fospirate?

The molecular formula of Fospirate is C7H7Cl3NO4P and its molar mass is 306.47 g/mol.

What is Fospirate used for?

Use classes: Insecticides.

Is Fospirate hazardous?

Fospirate carries the GHS signal word "Warning". Main hazards: harmful if swallowed, very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Fospirate?

Fospirate is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Fospirate?

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What is the price of Fospirate?

Suppliers quote Fospirate 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 Fospirate

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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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