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Sulfur and phosphorus compounds

Sarin

Also known as IMPF, Sarin II, Trilone 46

CAS 107-44-8Formula C4H10FO2PMolar mass 140.09 g/mol
Prohibited, not for trade
Why it is not for trade
Sarin chemical structure, C4H10FO2P, CAS 107-44-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Liquid
Melting point
-57 °C
Boiling point
147 °C
Density
1.0887 g/mL at 25 °C
Flash point
Non-flammable (EPA, 1998)
HS code
293149
Category
Sulfur and phosphorus compounds

What is Sarin?

Plain description, key identifiers and synonyms

Isopropyl methylphosphonofluoridate is a phosphinic ester that is the isopropyl ester of methylphosphonofluoridic acid. It is a fluorine molecular entity and a phosphinic ester.

Sarin is a chemical compound used as a chemical weapon.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[fluoro(methyl)phosphoryl]oxypropane
CAS number
107-44-8 CAS number cross-checked
Molecular formula
C4H10FO2P
UNII
B4XG72QGFM
InChIKey
DYAHQFWOVKZOOW-UHFFFAOYSA-N
InChI
InChI=1S/C4H10FO2P/c1-4(2)7-8(3,5)6/h4H,1-3H3
SMILES (canonical and isomeric)
CC(C)OP(=O)(C)F

Synonyms

  • IMPF
  • Sarin II
  • Trilone 46
  • O-Isopropyl methylphosphonofluoridate
  • Isopropyl methylphosphonofluoridate
  • Isopropyl methylfluorophosphate
  • Gas, Sarin
  • 2-[fluoro(methyl)phosphoryl]oxypropane
  • Isopropyl methanefluorophosphonate
  • Isopropoxymethylphosphoryl fluoride
  • Isopropyl-methyl-phosphoryl fluoride
  • Methylphosphonofluoridic acid isopropyl ester
  • EA 1208
  • TL 1618
  • Isopropoxymethylphoshoryl fluoride
  • Phosphine oxide, fluoroisopropoxymethyl-
  • Phosphonofluoridic acid, methyl-, isopropyl ester
  • Phosphonofluoridic acid, methyl-, 1-methylethyl ester
  • Phosphoric acid, methylfluoro-, isopropyl ester
  • (+-)-Isopropyl methylphosphonofluoridate
  • Methlyfluorophosphonic acid isopropyl ester
  • Isopropylester kyseliny methylfluorfosfonove
  • Methylphosphonofluoride acid, isopropyl ester
  • 1-Methylethyl (+-)-methylphosphonofluoridate
  • Methylfluorphosphorsaeureisopropylester
Show all 37 synonyms
  • Phosphonofluoridic acid, P-methyl-, 1-methylethyl ester
  • 2-(fluoro(methyl)phosphoryl)oxypropane
  • o-Isopropylmethyl Phosphonofluoridate
  • ortho-Isopropylmethyl Phosphonofluoridate
  • o Isopropylmethyl Phosphonofluoridate
  • Phosphonofluoridate, o-Isopropylmethyl
  • ortho Isopropylmethyl Phosphonofluoridate
  • Phosphonofluoridate, ortho-Isopropylmethyl
  • G-Series Nerve Agent GB
  • Phosphine oxide, fluoroisopropoxymethyl
  • GB
  • propan-2-yl methylphosphonofluoridate

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
Liquidexp.
Odour
Almost odorless in pure stateexp.
Taste
Tasteless in its pure formexp.
Melting point
-57 °Cexp.
Boiling point
147 °Cexp.
Density
1.0887 g/mL at 25 °Cexp.
Flash point
Non-flammable (EPA, 1998)exp.
Solubility
Miscible with water /1 × 10⁺⁶ mg/L at 25 °C /exp.
Vapour pressure
2.86 mm Hg at 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
140.09 g/molcalc.
Exact mass
140.0402 Dacalc.
LogP (octanol/water)
2.2calc.
Topological polar surface area
26.3 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
2calc.
Heavy atoms
8calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

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.

Sarin suppliers

Trading restrictions apply to this substance

Chemical Weapons Convention Schedule 1

Sarin is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Listing and enquiries are not allowed for this substance.

Reference: OPCW Chemical Weapons Convention Schedule 1

Our policy on controlled substances

Sarin price

Indicative price range per kg from live supplier offers

Prices are not shown for prohibited substances.

Uses and applications

What the substance is used for, by industry and function

Chemical warfare agent.

Sarin is a human-made chemical warfare agent classified as a nerve agent. Nerve agents are the most toxic and rapidly acting of the known chemical warfare agents. They are similar to ... pesticides ... called organophosphates in terms of how they work and what kind of harmful effects they cause. However, nerve agents are much more potent than organophosphate pesticides. Sarin originally was developed in 1938 in Germany as a pesticide.

Sarin (military designation GB) is a nerve agent that is one of the most toxic of the known chemical warfare agents. It is generally odorless and tasteless. Exposure to sarin can cause death in minutes. A fraction of an ounce (1 to 10 mL) of sarin on the skin can be fatal. Nerve agents are chemically similar to organophosphate pesticides and exert their effects by interfering with the normal function of the nervous system.

Pharmacological actions

  • Chemical Warfare Agents
  • Cholinesterase Inhibitors

Roles

  • aetiopathogenetic role
  • enzyme inhibitor
  • neurotoxin
  • poison

Pharmacology

G-Series Nerve Agent GB is a rapid-acting non-persistent organophosphorus ester nerve agent that is a clear, colorless and odorless liquid and is absorbed into the body by inhalation, ingestion, skin contact, or eye contact. GB causes excessive cholinergic stimulation by producing potent and irreversible inhibition of cholinesterase.

How it is made

/Methylphosphonyl difluoride is/ convertible into sarin-family nerve gases simply by contact with any of many alcohols.

Regulatory status

Inventories, regulations and trade controls that list this substance

Chemical Weapons Convention Schedule 1

Sarin is prohibited on CompoundList. Listings, quotes and messages are disabled. This page is kept for information only.

Listing and enquiries are not allowed for this substance.

Reference: OPCW Chemical Weapons Convention Schedule 1

Our policy on controlled substances

Controls

  • Chemical Weapons Convention Schedule 1

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 Sarin is traded under.

HS 2931.49Indicative HS code

Non-halogenated organo-phosphorous derivatives, other

World exports in 2024
$3.44B
−6.5% vs 2023, imports $3.07B
2022 to 2024
Top exporters
  1. China54.9%
  2. United States25.4%
  3. Germany5.1%
Top importers
  1. United States20.9%
  2. Argentina14.9%
  3. Brazil14.3%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Sarin?

Isopropyl methylphosphonofluoridate is a phosphinic ester that is the isopropyl ester of methylphosphonofluoridic acid. It is a fluorine molecular entity and a phosphinic ester.

What is the CAS number of Sarin?

The CAS registry number of Sarin is 107-44-8.

What is the molecular formula and weight of Sarin?

The molecular formula of Sarin is C4H10FO2P and its molar mass is 140.09 g/mol.

What is Sarin used for?

Chemical warfare agent. Sarin is a human-made chemical warfare agent classified as a nerve agent. Nerve agents are the most toxic and rapidly acting of the known chemical warfare agents. They are similar to ... pesticides ... called organophosphates in terms of how they work and what kind of harmful effects they cause.

Is Sarin hazardous?

No GHS hazard classification for Sarin 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 Sarin?

Sarin is usually classified under HS code 293149 (Non-halogenated organo-phosphorous derivatives, other). This is indicative, confirm it with your customs broker before shipping.

Can I buy Sarin on CompoundList?

No. Sarin is on our prohibited list, so listings, quotes and messages for it are disabled. This page is kept for information only.

Guides for buyers

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

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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