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Aliphatic and alicyclic building blocks

Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane

Also known as triisobutylphosphine oxide, 1-[bis(2-methylpropyl)phosphoryl]-2-methylpropane, tri-i-butylphosphine oxide

CAS 7682-87-3Formula C12H27OPMolar mass 218.32 g/mol
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Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane chemical structure, C12H27OP, CAS 7682-87-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7682-87-3
Formula
C12H27OP
Molar mass
218.32 g/mol
HS code
293149
Category
Aliphatic and alicyclic building blocks

What is Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane?

Plain description, key identifiers and synonyms

Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane is a chemical substance with the molecular formula C12H27OP and a molar mass of 218.32 g/mol. Its CAS registry number is 7682-87-3. The IUPAC name is 1-[bis(2-methylpropyl)phosphoryl]-2-methylpropane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-[bis(2-methylpropyl)phosphoryl]-2-methylpropane
CAS number
7682-87-3 CAS number cross-checked
Molecular formula
C12H27OP
UNII
2FV3Y5T5EU
InChIKey
KIZGBMSFXOHDPW-UHFFFAOYSA-N
InChI
InChI=1S/C12H27OP/c1-10(2)7-14(13,8-11(3)4)9-12(5)6/h10-12H,7-9H2,1-6H3
SMILES (canonical and isomeric)
CC(C)CP(=O)(CC(C)C)CC(C)C

Synonyms

  • triisobutylphosphine oxide
  • 1-[bis(2-methylpropyl)phosphoryl]-2-methylpropane
  • tri-i-butylphosphine oxide
  • Tris(2-methylpropyl)phosphine oxide
  • Phosphine oxide, tris(2-methylpropyl)-

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
218.32 g/molcalc.
Exact mass
218.18 Dacalc.
LogP (octanol/water)
4.32calc.
Topological polar surface area
17.07 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
6calc.
Heavy atoms
14calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
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.

Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane suppliers

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Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane 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 Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane 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 Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane, based on the data on this page

What is Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane?

Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane is a chemical substance with the molecular formula C12H27OP and a molar mass of 218.32 g/mol. Its CAS registry number is 7682-87-3. The IUPAC name is 1-[bis(2-methylpropyl)phosphoryl]-2-methylpropane.

What is the CAS number of Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane?

The CAS registry number of Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane is 7682-87-3.

What is the molecular formula and weight of Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane?

The molecular formula of Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane is C12H27OP and its molar mass is 218.32 g/mol.

What is Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane used for?

Known uses and roles of Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane include building blocks in research and laboratory.

Is Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane hazardous?

No GHS hazard classification for Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane 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 Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane?

Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane 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 Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane?

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What is the price of Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane?

Suppliers quote Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane 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 Tris(2-methylpropyl)(oxo)-lambda~5~-phosphane

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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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