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Aliphatic and alicyclic building blocks

Trihexyl borate

Also known as Hexyl orthoborate, Tri-n-hexyl borate, Hexyl borate, tri-

CAS 5337-36-0Formula C18H39BO3Molar mass 314.32 g/molEC 226-262-8
GHS signal word: Warning. Pictograms: Harmful or irritant
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Trihexyl borate chemical structure, C18H39BO3, CAS 5337-36-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5337-36-0
Formula
C18H39BO3
Molar mass
314.32 g/mol
EC number
226-262-8
HS code
292090
Category
Aliphatic and alicyclic building blocks

What is Trihexyl borate?

Plain description, key identifiers and synonyms

Trihexyl borate is a chemical substance with the molecular formula C18H39BO3 and a molar mass of 314.32 g/mol. Its CAS registry number is 5337-36-0.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
trihexyl borate
CAS number
5337-36-0 CAS number cross-checked
EC number
226-262-8
Molecular formula
C18H39BO3
UNII
9LK29O7A4Y
MDL number
MFCD00027295
InChIKey
KDQYHGMMZKMQAA-UHFFFAOYSA-N
InChI
InChI=1S/C18H39BO3/c1-4-7-10-13-16-20-19(21-17-14-11-8-5-2)22-18-15-12-9-6-3/h4-18H2,1-3H3
SMILES (canonical and isomeric)
B(OCCCCCC)(OCCCCCC)OCCCCCC

Synonyms

  • Hexyl orthoborate
  • Tri-n-hexyl borate
  • Hexyl borate, tri-
  • Boric acid, trihexyl ester
  • Trihexyl orthoborate
  • Boric acid (H3BO3), trihexyl ester
  • Hexyl borate, (C6H13O)3 B
  • trihexylborate
  • 4-01-00-01703 (Beilstein Handbook Reference)
  • Boric acid tri-n-hexyl ester
  • Boricacidtri-n-hexylester
  • Boric Acid Trihexyl Ester

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
314.32 g/molcalc.
Exact mass
314.2992 Dacalc.
LogP (octanol/water)
5.76calc.
Topological polar surface area
27.69 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
18calc.
Heavy atoms
22calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

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

Hazard statements

  • H319Causes serious eye irritation.
  • H413May cause long lasting harmful effects to aquatic life.
Precautionary statements (6)
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P337 + P317If eye irritation persists: Get medical help.
  • 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

Trihexyl borate suppliers

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Trihexyl borate 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

United States

  • TSCA inventory (USA)
    Status: Inactive 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 Trihexyl borate is traded under.

HS 2920.90Indicative HS code

Esters, other than thiophosphoric esters (phosphorothioates) and phosphite esters and their salts…

World exports in 2024
$1.05B
+8.0% vs 2023, imports $1.23B
2019 to 2024
Top exporters
  1. China33.4%
  2. Germany18.8%
  3. United States12.4%
Top importers
  1. United States19.2%
  2. Singapore8.9%
  3. South Korea6.9%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Trihexyl borate, based on the data on this page

What is Trihexyl borate?

Trihexyl borate is a chemical substance with the molecular formula C18H39BO3 and a molar mass of 314.32 g/mol. Its CAS registry number is 5337-36-0.

What is the CAS number of Trihexyl borate?

The CAS registry number of Trihexyl borate is 5337-36-0.

What is the molecular formula and weight of Trihexyl borate?

The molecular formula of Trihexyl borate is C18H39BO3 and its molar mass is 314.32 g/mol.

What is Trihexyl borate used for?

Known uses and roles of Trihexyl borate include building blocks in research and laboratory.

Is Trihexyl borate hazardous?

Trihexyl borate carries the GHS signal word "Warning". Main hazards: causes serious eye irritation, may cause long lasting harmful effects to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Trihexyl borate?

Trihexyl borate is usually classified under HS code 292090 (Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Trihexyl borate?

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What is the price of Trihexyl borate?

Suppliers quote Trihexyl borate 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 Trihexyl borate

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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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