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Aromatic building blocks

Phthalaldehydic anhydride

Also known as 2-Formylbenzoic anhydride, Benzoic acid, 2-formyl-, anhydride with 2-formylbenzoic acid

CAS 101976-08-3Formula C16H10O5Molar mass 282.25 g/mol
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Phthalaldehydic anhydride chemical structure, C16H10O5, CAS 101976-08-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
101976-08-3
Formula
C16H10O5
Molar mass
282.25 g/mol
HS code
291830
Category
Aromatic building blocks

What is Phthalaldehydic anhydride?

Plain description, key identifiers and synonyms

Phthalaldehydic anhydride is a chemical substance with the molecular formula C16H10O5 and a molar mass of 282.25 g/mol. Its CAS registry number is 101976-08-3. The IUPAC name is (2-formylbenzoyl) 2-formylbenzoate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2-formylbenzoyl) 2-formylbenzoate
CAS number
101976-08-3 CAS number cross-checked
Molecular formula
C16H10O5
InChIKey
ZYFUINKRRQFAPT-UHFFFAOYSA-N
InChI
InChI=1S/C16H10O5/c17-9-11-5-1-3-7-13(11)15(19)21-16(20)14-8-4-2-6-12(14)10-18/h1-10H
SMILES (canonical and isomeric)
C1=CC=C(C(=C1)C=O)C(=O)OC(=O)C2=CC=CC=C2C=O

Synonyms

  • 2-Formylbenzoic anhydride
  • Benzoic acid, 2-formyl-, anhydride with 2-formylbenzoic 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
282.25 g/molcalc.
Exact mass
282.0528 Dacalc.
LogP (octanol/water)
2.31calc.
Topological polar surface area
77.51 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
21calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
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, O=C(OC(=O)c1ccccc1)c1ccccc1

O=C(OC(=O)c1ccccc1)c1ccccc1

2 rings, 17 atoms, the Benzoic anhydride ring system.

56 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.

Phthalaldehydic anhydride suppliers

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

Frequently asked questions

Quick answers about Phthalaldehydic anhydride, based on the data on this page

What is Phthalaldehydic anhydride?

Phthalaldehydic anhydride is a chemical substance with the molecular formula C16H10O5 and a molar mass of 282.25 g/mol. Its CAS registry number is 101976-08-3. The IUPAC name is (2-formylbenzoyl) 2-formylbenzoate.

What is the CAS number of Phthalaldehydic anhydride?

The CAS registry number of Phthalaldehydic anhydride is 101976-08-3.

What is the molecular formula and weight of Phthalaldehydic anhydride?

The molecular formula of Phthalaldehydic anhydride is C16H10O5 and its molar mass is 282.25 g/mol.

What is Phthalaldehydic anhydride used for?

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

Is Phthalaldehydic anhydride hazardous?

No GHS hazard classification for Phthalaldehydic anhydride 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 Phthalaldehydic anhydride?

Phthalaldehydic anhydride 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 Phthalaldehydic anhydride?

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What is the price of Phthalaldehydic anhydride?

Suppliers quote Phthalaldehydic anhydride 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 Phthalaldehydic anhydride

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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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