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Heterocyclic building blocks

Triethylene diphosphite

Also known as 1,2-Bis(1,3,2-dioxaphospholan-2-yloxy)ethane, Ethylene glycol phosphite (3:2), Phosphorous acid, ethylene cyclic diethylene ester

CAS 1015-05-0Formula C6H12O6P2Molar mass 242.10 g/mol
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Triethylene diphosphite chemical structure, C6H12O6P2, CAS 1015-05-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1015-05-0
Formula
C6H12O6P2
Molar mass
242.10 g/mol
HS code
293499
Category
Heterocyclic building blocks

What is Triethylene diphosphite?

Plain description, key identifiers and synonyms

Triethylene diphosphite is a chemical substance with the molecular formula C6H12O6P2 and a molar mass of 242.10 g/mol. Its CAS registry number is 1015-05-0. The IUPAC name is 2-[2-(1,3,2-dioxaphospholan-2-yloxy)ethoxy]-1,3,2-dioxaphospholane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[2-(1,3,2-dioxaphospholan-2-yloxy)ethoxy]-1,3,2-dioxaphospholane
CAS number
1015-05-0 CAS number cross-checked
Molecular formula
C6H12O6P2
UNII
63TXJ262IA
InChIKey
YPGVFZRQOZKYKD-UHFFFAOYSA-N
InChI
InChI=1S/C6H12O6P2/c1-2-8-13(7-1)11-5-6-12-14-9-3-4-10-14/h1-6H2
SMILES (canonical and isomeric)
C1COP(O1)OCCOP2OCCO2

Synonyms

  • 1,2-Bis(1,3,2-dioxaphospholan-2-yloxy)ethane
  • Ethylene glycol phosphite (3:2)
  • Phosphorous acid, ethylene cyclic diethylene ester
  • 1,3,2-Dioxaphospholane, 2,2'-(1,2-ethanediylbis(oxy))bis-
  • 2-[2-(1,3,2-dioxaphospholan-2-yloxy)ethoxy]-1,3,2-dioxaphospholane
  • 2,2'-[ethane-1,2-diylbis(oxy)]bis(1,3,2-dioxaphospholane)
  • 1,2-bis(1,3,2-dioxaphospholan-2yloxy)ethane
  • 1,3,2-Dioxaphosphacyclopentyl)-1,4-dioxabutane
  • 1,2-Dioxaphospholane, 2,2'-[1,2-ethanediylbis(oxy)]bis-

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
242.10 g/molcalc.
Exact mass
242.0109 Dacalc.
LogP (octanol/water)
1.57calc.
Topological polar surface area
55.38 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
5calc.
Heavy atoms
14calc.
Rings
2calc.
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.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1COP(OCCOP2OCCO2)O1

C1COP(OCCOP2OCCO2)O1

2 rings, 14 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

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.

Triethylene diphosphite suppliers

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

Frequently asked questions

Quick answers about Triethylene diphosphite, based on the data on this page

What is Triethylene diphosphite?

Triethylene diphosphite is a chemical substance with the molecular formula C6H12O6P2 and a molar mass of 242.10 g/mol. Its CAS registry number is 1015-05-0. The IUPAC name is 2-[2-(1,3,2-dioxaphospholan-2-yloxy)ethoxy]-1,3,2-dioxaphospholane.

What is the CAS number of Triethylene diphosphite?

The CAS registry number of Triethylene diphosphite is 1015-05-0.

What is the molecular formula and weight of Triethylene diphosphite?

The molecular formula of Triethylene diphosphite is C6H12O6P2 and its molar mass is 242.10 g/mol.

What is Triethylene diphosphite used for?

Known uses and roles of Triethylene diphosphite include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Triethylene diphosphite hazardous?

No GHS hazard classification for Triethylene diphosphite 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 Triethylene diphosphite?

Triethylene diphosphite 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 Triethylene diphosphite?

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What is the price of Triethylene diphosphite?

Suppliers quote Triethylene diphosphite 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 Triethylene diphosphite

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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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