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Herbicides

Phosphinothricin

Also known as 2-amino-4-methylphosphinobutyric acid, Glufosinate-P, L-Glufosinate

CAS 35597-44-5Formula C5H12NO4PMolar mass 181.13 g/molEC 690-077-2
GHS signal word: Danger. Pictograms: Acute toxicity (severe) 5 suppliers listed
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Phosphinothricin chemical structure, C5H12NO4P, CAS 35597-44-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
35597-44-5
Formula
C5H12NO4P
Molar mass
181.13 g/mol
EC number
690-077-2
HS code
293149
Category
Herbicides

What is Phosphinothricin?

Plain description, key identifiers and synonyms

Glufosinate-P is a 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid that has S configuration at position 2. A glutamine synthetase inhibitor, it is used (generally as the corresponding ammonium or sodium salts, known as glufosinate-P-ammonium and glufosinate-P-sodium, respectively) as a herbicide to control annual weeds and grasses. It has a role as an EC 6.3.1.2 (glutamate--ammonia ligase) inhibitor, a herbicide and an agrochemical. It is an enantiomer of a (2R)-glufosinate. It is a tautomer of a glufosinate-P zwitterion.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid
CAS number
35597-44-5 CAS number cross-checkedOther or deprecated CAS: 15766-01-5, 51276-47-2, 73777-49-8
EC number
690-077-2
Molecular formula
C5H12NO4P
UNII
72P470U27C
InChIKey
IAJOBQBIJHVGMQ-BYPYZUCNSA-N
InChI
InChI=1S/C5H12NO4P/c1-11(9,10)3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)(H,9,10)/t4-/m0/s1
SMILES
CP(=O)(CC[C@@H](C(=O)O)N)O

Synonyms

  • 2-amino-4-methylphosphinobutyric acid
  • Glufosinate-P
  • L-Glufosinate
  • L-Phosphinothricin
  • (S)-Phosphinothricin
  • (2S)-2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid
  • Butanoic acid, 2-amino-4-(hydroxymethylphosphinyl)-, (2S)-
  • (S)-Glufosinate
  • (2S)-2-amino-4-(hydroxymethylphosphinyl)butanoic acid
  • (2S)-2-Amino-4-(hydroxy(methyl)phosphoryl)butanoic acid
  • (2S)-2-amino-4-(hydroxy(methyl)phosphinoyl)butyric acid
  • (2S)-2-azaniumyl-4-[hydroxy(methyl)phosphoryl]butanoate
  • PPQ
  • (2S)-2-amino-4-[hydroxy(methyl)phosphinoyl]butyric acid
  • 2-Amino-4-(hydroxymethyl-phosphinyl)butanoic acid
  • S-glufosinate
  • phosphinothricin-P
  • 1fpy
  • (+)-glufosinate
  • L-Glufosinate HCl
  • (2S)-glufosinate
  • L-PPT
  • Glufosinate, (S)-
  • Phosphinothricin, (S)-
  • L-homoalanin-4-yl(methyl)phosphinic acid
Show all 29 synonyms
  • 4-[hydroxy(methyl)phosphinoyl]-L-homoalanine
  • L-2-Amino-4-(hydroxymethylphosphinyl)butanoate
  • (2S)-2-amino-4-[(R)-hydroxy(methyl)phosphoryl]butanoic acid
  • (S)-2-Amino-4-(hydroxy-methyl-phosphinoyl)-butyric acid, hydrochloride

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
181.13 g/molcalc.
Exact mass
181.0504 Dacalc.
LogP (octanol/water)
-0.31calc.
Topological polar surface area
100.6 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
11calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.8calc.
Formal charge
0calc.
Stereocentres
2calc.
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

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H302Harmful if swallowed.
  • H331Toxic if inhaled.
Precautionary statements (12)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P301 + P317If swallowed: Get medical help.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P316Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • 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

Phosphinothricin suppliers

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Where suppliers are based

5 suppliers in 1 country

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Phosphinothricin price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Enzyme Inhibitors
  • Herbicides

Roles

  • agrochemical
  • enzyme inhibitor
  • herbicide
  • pesticide

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 Phosphinothricin 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 Phosphinothricin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Phosphinothricin?

Glufosinate-P is a 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid that has S configuration at position 2.

What is the CAS number of Phosphinothricin?

The CAS registry number of Phosphinothricin is 35597-44-5. Other or deprecated CAS numbers: 15766-01-5, 51276-47-2, 73777-49-8.

What is the molecular formula and weight of Phosphinothricin?

The molecular formula of Phosphinothricin is C5H12NO4P and its molar mass is 181.13 g/mol.

What is Phosphinothricin used for?

Known uses and roles of Phosphinothricin include herbicides in agriculture and crop protection, biochemical and pharmacological tools in research and laboratory, agrochemical, enzyme inhibitor, herbicide and 3 more.

Is Phosphinothricin hazardous?

Phosphinothricin carries the GHS signal word "Danger". Main hazards: harmful if swallowed, toxic if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Phosphinothricin?

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

Where can I buy Phosphinothricin?

CompoundList lists 5 suppliers of Phosphinothricin in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Phosphinothricin?

Suppliers quote Phosphinothricin 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 Phosphinothricin

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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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