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Boronic acids and esters

Tolboxane

Also known as Clarphoril, Diossoborono, Clarmil

CAS 2430-46-8Formula C14H21BO2Molar mass 232.13 g/mol
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Tolboxane chemical structure, C14H21BO2, CAS 2430-46-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2430-46-8
Formula
C14H21BO2
Molar mass
232.13 g/mol
HS code
293190
Category
Boronic acids and esters

What is Tolboxane?

Plain description, key identifiers and synonyms

Tolboxane is a chemical substance with the molecular formula C14H21BO2 and a molar mass of 232.13 g/mol. Its CAS registry number is 2430-46-8. The IUPAC name is 5-methyl-2-(4-methylphenyl)-5-propyl-1,3,2-dioxaborinane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-methyl-2-(4-methylphenyl)-5-propyl-1,3,2-dioxaborinane
CAS number
2430-46-8 CAS number cross-checked
Molecular formula
C14H21BO2
UNII
33P8JV23L7
InChIKey
WOZGAFMPOSBQCU-UHFFFAOYSA-N
InChI
InChI=1S/C14H21BO2/c1-4-9-14(3)10-16-15(17-11-14)13-7-5-12(2)6-8-13/h5-8H,4,9-11H2,1-3H3
SMILES (canonical and isomeric)
B1(OCC(CO1)(C)CCC)C2=CC=C(C=C2)C

Synonyms

  • Clarphoril
  • Diossoborono
  • Clarmil
  • Tolboxan
  • Tolboxanum
  • Tolboxano
  • IS 813
  • JS 813
  • 5-Methyl-5-propyl-2-(p-tolyl)-1,3,2-dioxaborinane
  • 2-Methyl-2-propyl-1,3-propanediol-p-methylbenzeneboronate
  • p-Tolueneboronic acid, cyclic 2-methyl-2-propyltrimethylene ester
  • 1,3,2-Dioxaborinane, 5-methyl-5-propyl-2-p-tolyl-
  • 1,3,2-Dioxaborinane, 5-methyl-2-(4-methylphenyl)-5-propyl-
  • Tolboxanum (INN-Latin)
  • Tolboxano (INN-Spanish)
  • 1,3,2-Dioxaborinane, 5-methyl-2-(4-methylphenyl)-5-propyl-(9CI)
  • 5-methyl-2-(4-methylphenyl)-5-propyl-1,3,2-dioxaborinane
  • 5-Methyl-5-propyl-2-p-tolyl-1,3,2-dioxaborinane
  • 5-Methyl-5-propyl-2-(p-tolyl)-1,2-dioxaborinane
  • 1,2-Dioxaborinane, 5-methyl-5-propyl-2-(p-tolyl)-
  • 1,2-Dioxaborinane, 5-methyl-2-(4-methylphenyl)-5-propyl-

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
232.13 g/molcalc.
Exact mass
232.1635 Dacalc.
LogP (octanol/water)
2.54calc.
Topological polar surface area
18.46 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
17calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.57calc.
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, c1ccc(B2OCCCO2)cc1

c1ccc(B2OCCCO2)cc1

2 rings, 12 atoms, the Phenylboronic acid 1,3-propanediol ester ring system.

307 other chemicals share 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.

Tolboxane suppliers

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Tolboxane 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

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Tolboxane (INN), Ref no: 177, Annex ref: II/177

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Tolboxane is traded under.

HS 2931.90Indicative HS code

Organo-inorganic compounds, other than tetramethyl lead, tetraethyl lead, tributyltin compounds…

World exports in 2024
$3.97B
+5.3% vs 2023, imports $3.93B
2019 to 2024
Top exporters
  1. China28.3%
  2. United States15.6%
  3. Germany15.1%
Top importers
  1. United States14.6%
  2. China13.0%
  3. South Korea8.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Tolboxane?

Tolboxane is a chemical substance with the molecular formula C14H21BO2 and a molar mass of 232.13 g/mol. Its CAS registry number is 2430-46-8. The IUPAC name is 5-methyl-2-(4-methylphenyl)-5-propyl-1,3,2-dioxaborinane.

What is the CAS number of Tolboxane?

The CAS registry number of Tolboxane is 2430-46-8.

What is the molecular formula and weight of Tolboxane?

The molecular formula of Tolboxane is C14H21BO2 and its molar mass is 232.13 g/mol.

What is Tolboxane used for?

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

Is Tolboxane hazardous?

No GHS hazard classification for Tolboxane 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 Tolboxane?

Tolboxane is usually classified under HS code 293190 (X. ORGANO-INORGANIC COMPOUNDS, HETEROCYCLIC COMPOUNDS, NUCLEIC ACIDS AND THEIR SALTS…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Tolboxane?

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What is the price of Tolboxane?

Suppliers quote Tolboxane 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 Tolboxane

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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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