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Heterocyclic building blocks

1Lambda5-phospholan-1-one

Also known as Phospholane 1-oxide, phospholane oxide, 1lambda-phospholan-1-one

CAS 48082-31-1Formula C4H8OP+Molar mass 103.08 g/molEC 866-432-4
GHS signal word: Warning. Pictograms: Flammable, Harmful or irritant
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1Lambda5-phospholan-1-one chemical structure, C4H8OP+, CAS 48082-31-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
48082-31-1
Formula
C4H8OP+
Molar mass
103.08 g/mol
EC number
866-432-4
HS code
293499
Category
Heterocyclic building blocks

What is 1Lambda5-phospholan-1-one?

Plain description, key identifiers and synonyms

1Lambda5-phospholan-1-one is a chemical substance with the molecular formula C4H8OP+ and a molar mass of 103.08 g/mol. Its CAS registry number is 48082-31-1. The IUPAC name is phospholan-1-ium 1-oxide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
phospholan-1-ium 1-oxide
CAS number
48082-31-1
EC number
866-432-4
Molecular formula
C4H8OP+
MDL number
MFCD32833642
InChIKey
FMXSEXLKXMOCJO-UHFFFAOYSA-N
InChI
InChI=1S/C4H8OP/c5-6-3-1-2-4-6/h1-4H2/q+1
SMILES (canonical and isomeric)
C1CC[P+](=O)C1

Synonyms

  • Phospholane 1-oxide
  • phospholane oxide
  • 1lambda-phospholan-1-one

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
103.08 g/molcalc.
Exact mass
103.0307 Dacalc.
LogP (octanol/water)
1.61calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
6calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
1calc.
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, O=[P+]1CCCC1

O=[P+]1CCCC1

1 ring, 6 atoms. This chemical is the scaffold itself.

No other chemical in our database has this scaffold.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H226Flammable liquid and vapour.
  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (29)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • 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

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1Lambda5-phospholan-1-one price

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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 1Lambda5-phospholan-1-one is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 1Lambda5-phospholan-1-one is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 1Lambda5-phospholan-1-one, based on the data on this page

What is 1Lambda5-phospholan-1-one?

1Lambda5-phospholan-1-one is a chemical substance with the molecular formula C4H8OP+ and a molar mass of 103.08 g/mol. Its CAS registry number is 48082-31-1. The IUPAC name is phospholan-1-ium 1-oxide.

What is the CAS number of 1Lambda5-phospholan-1-one?

The CAS registry number of 1Lambda5-phospholan-1-one is 48082-31-1.

What is the molecular formula and weight of 1Lambda5-phospholan-1-one?

The molecular formula of 1Lambda5-phospholan-1-one is C4H8OP+ and its molar mass is 103.08 g/mol.

What is 1Lambda5-phospholan-1-one used for?

Known uses and roles of 1Lambda5-phospholan-1-one include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 1Lambda5-phospholan-1-one hazardous?

1Lambda5-phospholan-1-one carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, harmful if swallowed, harmful in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 1Lambda5-phospholan-1-one?

1Lambda5-phospholan-1-one is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 1Lambda5-phospholan-1-one?

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What is the price of 1Lambda5-phospholan-1-one?

Suppliers quote 1Lambda5-phospholan-1-one on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

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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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