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Heterocyclic building blocks

7-Hydroxydiftalone

Also known as Phthalazino(2,3-b)phthalazine-5,12(7H,14H)-dione, 7-hydroxy-, 5-hydroxy-5,12-dihydrophthalazino[3,2-b]phthalazine-7,14-dione, 7-Hydroxyphthalazino[2,3-b]phthalazine-5,12(7H,14H)-dione

CAS 54648-83-8Formula C16H12N2O3Molar mass 280.28 g/mol
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7-Hydroxydiftalone chemical structure, C16H12N2O3, CAS 54648-83-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
54648-83-8
Formula
C16H12N2O3
Molar mass
280.28 g/mol
HS code
293379
Category
Heterocyclic building blocks

What is 7-Hydroxydiftalone?

Plain description, key identifiers and synonyms

7-Hydroxydiftalone is a chemical substance with the molecular formula C16H12N2O3 and a molar mass of 280.28 g/mol. Its CAS registry number is 54648-83-8. The IUPAC name is 5-hydroxy-5,12-dihydrophthalazino[3,2-b]phthalazine-7,14-dione.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-hydroxy-5,12-dihydrophthalazino[3,2-b]phthalazine-7,14-dione
CAS number
54648-83-8 CAS number cross-checked
Molecular formula
C16H12N2O3
InChIKey
JDMSLJGYOGKZLD-UHFFFAOYSA-N
InChI
InChI=1S/C16H12N2O3/c19-14-12-7-3-4-8-13(12)16(21)18-15(20)11-6-2-1-5-10(11)9-17(14)18/h1-8,16,21H,9H2
SMILES (canonical and isomeric)
C1C2=CC=CC=C2C(=O)N3N1C(=O)C4=CC=CC=C4C3O

Synonyms

  • Phthalazino(2,3-b)phthalazine-5,12(7H,14H)-dione, 7-hydroxy-
  • 5-hydroxy-5,12-dihydrophthalazino[3,2-b]phthalazine-7,14-dione
  • 7-Hydroxyphthalazino[2,3-b]phthalazine-5,12(7H,14H)-dione

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
280.28 g/molcalc.
Exact mass
280.0848 Dacalc.
LogP (octanol/water)
1.7calc.
Topological polar surface area
60.85 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
21calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.13calc.
Formal charge
0calc.
Stereocentres
1calc.
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=C1c2ccccc2CN2C(=O)c3ccccc3CN12

O=C1c2ccccc2CN2C(=O)c3ccccc3CN12

4 rings, 20 atoms, the Diftalone ring system.

4 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.

7-Hydroxydiftalone suppliers

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7-Hydroxydiftalone 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 7-Hydroxydiftalone is traded under.

HS 2933.79Indicative HS code

Lactams, other lactams

World exports in 2024
$16.2B
−64.4% vs 2023, imports $15.4B
2019 to 2024
Top exporters
  1. Ireland37.0%
  2. France * partner reported15.6%
  3. Spain11.3%
Top importers
  1. Germany27.8%
  2. Ireland18.9%
  3. Panama * partner reported12.9%

* Partner reported figures, a lower bound.

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

The HS code shown for 7-Hydroxydiftalone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 7-Hydroxydiftalone, based on the data on this page

What is 7-Hydroxydiftalone?

7-Hydroxydiftalone is a chemical substance with the molecular formula C16H12N2O3 and a molar mass of 280.28 g/mol. Its CAS registry number is 54648-83-8. The IUPAC name is 5-hydroxy-5,12-dihydrophthalazino[3,2-b]phthalazine-7,14-dione.

What is the CAS number of 7-Hydroxydiftalone?

The CAS registry number of 7-Hydroxydiftalone is 54648-83-8.

What is the molecular formula and weight of 7-Hydroxydiftalone?

The molecular formula of 7-Hydroxydiftalone is C16H12N2O3 and its molar mass is 280.28 g/mol.

What is 7-Hydroxydiftalone used for?

Known uses and roles of 7-Hydroxydiftalone include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 7-Hydroxydiftalone hazardous?

No GHS hazard classification for 7-Hydroxydiftalone 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 7-Hydroxydiftalone?

7-Hydroxydiftalone is usually classified under HS code 293379 (Lactams, other lactams). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 7-Hydroxydiftalone?

Post a free request on CompoundList and suppliers of 7-Hydroxydiftalone will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 7-Hydroxydiftalone?

Suppliers quote 7-Hydroxydiftalone 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 7-Hydroxydiftalone

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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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