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Impurities and reference standards

Fenbufen impurity 13

Also known as 4,4'-([1,1'-biphenyl]-4,4'-diyl)bis(4-oxobutanoic acid)

CAS 6918-68-9Formula C20H18O6Molar mass 354.36 g/mol
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Fenbufen impurity 13 chemical structure, C20H18O6, CAS 6918-68-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
6918-68-9
Formula
C20H18O6
Molar mass
354.36 g/mol
HS code
291830
Category
Impurities and reference standards

What is Fenbufen impurity 13?

Plain description, key identifiers and synonyms

Fenbufen impurity 13 is a chemical substance with the molecular formula C20H18O6 and a molar mass of 354.36 g/mol. Its CAS registry number is 6918-68-9. The IUPAC name is 4-[4-[4-(3-carboxypropanoyl)phenyl]phenyl]-4-oxobutanoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-[4-[4-(3-carboxypropanoyl)phenyl]phenyl]-4-oxobutanoic acid
CAS number
6918-68-9
Molecular formula
C20H18O6
InChIKey
POULJDNNTMAJNC-UHFFFAOYSA-N
InChI
InChI=1S/C20H18O6/c21-17(9-11-19(23)24)15-5-1-13(2-6-15)14-3-7-16(8-4-14)18(22)10-12-20(25)26/h1-8H,9-12H2,(H,23,24)(H,25,26)
SMILES (canonical and isomeric)
C1=CC(=CC=C1C2=CC=C(C=C2)C(=O)CCC(=O)O)C(=O)CCC(=O)O

Synonyms

  • 4,4'-([1,1'-biphenyl]-4,4'-diyl)bis(4-oxobutanoic acid)

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
354.36 g/molcalc.
Exact mass
354.1103 Dacalc.
LogP (octanol/water)
3.45calc.
Topological polar surface area
108.7 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
9calc.
Heavy atoms
26calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.2calc.
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(-c2ccccc2)cc1

c1ccc(-c2ccccc2)cc1

2 rings, 12 atoms, the Biphenyl ring system.

32,228 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.

Fenbufen impurity 13 suppliers

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Fenbufen impurity 13 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Fenbufen impurity 13 is traded under.

HS 2918.30Indicative HS code

Carboxylic acids with aldehyde or ketone function but without other oxygen function…

World exports in 2024
$813M
−39.8% vs 2023, imports $1.23B
2019 to 2024
Top exporters
  1. China43.3%
  2. India * partner reported10.4%
  3. United States6.8%
Top importers
  1. Singapore33.1%
  2. Germany7.2%
  3. Japan6.9%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Fenbufen impurity 13 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Fenbufen impurity 13, based on the data on this page

What is Fenbufen impurity 13?

Fenbufen impurity 13 is a chemical substance with the molecular formula C20H18O6 and a molar mass of 354.36 g/mol. Its CAS registry number is 6918-68-9. The IUPAC name is 4-[4-[4-(3-carboxypropanoyl)phenyl]phenyl]-4-oxobutanoic acid.

What is the CAS number of Fenbufen impurity 13?

The CAS registry number of Fenbufen impurity 13 is 6918-68-9.

What is the molecular formula and weight of Fenbufen impurity 13?

The molecular formula of Fenbufen impurity 13 is C20H18O6 and its molar mass is 354.36 g/mol.

Is Fenbufen impurity 13 hazardous?

No GHS hazard classification for Fenbufen impurity 13 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 Fenbufen impurity 13?

Fenbufen impurity 13 is usually classified under HS code 291830 (Carboxylic acids with aldehyde or ketone function but without other oxygen function…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Fenbufen impurity 13?

Post a free request on CompoundList and suppliers of Fenbufen impurity 13 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Fenbufen impurity 13?

Suppliers quote Fenbufen impurity 13 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 Fenbufen impurity 13

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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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