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Nitriles, nitro and azo compounds

Terephthalaldehyde dioxime

Also known as 1,4-Benzenedicarboxaldehyde dioxime, 4-((Hydroxyimino)methyl)benzaldehyde oxime, 1,4-Benzene Dicarboxaldehyde Dioxime

CAS 18705-39-0Formula C8H8N2O2Molar mass 164.16 g/molEC 115-097-6
GHS signal word: Danger. Pictograms: Acute toxicity (severe) 1 supplier listed
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Terephthalaldehyde dioxime chemical structure, C8H8N2O2, CAS 18705-39-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
18705-39-0
Formula
C8H8N2O2
Molar mass
164.16 g/mol
EC number
115-097-6
HS code
292800
Category
Nitriles, nitro and azo compounds

What is Terephthalaldehyde dioxime?

Plain description, key identifiers and synonyms

Terephthalaldehyde dioxime is a chemical substance with the molecular formula C8H8N2O2 and a molar mass of 164.16 g/mol. Its CAS registry number is 18705-39-0. The IUPAC name is (NE)-N-[[4-[(E)-hydroxyiminomethyl]phenyl]methylidene]hydroxylamine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(NE)-N-[[4-[(E)-hydroxyiminomethyl]phenyl]methylidene]hydroxylamine
CAS number
18705-39-0
EC number
115-097-6
Molecular formula
C8H8N2O2
MDL number
MFCD00040201
InChIKey
UFJKQCPYFKAUEO-NXZHAISVSA-N
InChI
InChI=1S/C8H8N2O2/c11-9-5-7-1-2-8(4-3-7)6-10-12/h1-6,11-12H/b9-5+,10-6+
Canonical SMILES
ON=Cc1ccc(C=NO)cc1
Isomeric SMILES
C1=CC(=CC=C1/C=N/O)/C=N/O

Synonyms

  • 1,4-Benzenedicarboxaldehyde dioxime
  • 4-((Hydroxyimino)methyl)benzaldehyde oxime
  • 1,4-Benzene Dicarboxaldehyde Dioxime
  • Terephthaldehyde dioxime
  • (hydroxyimino)[4-((hydroxyimino)methyl)phenyl]methane
  • E,E-terephathalaldoxime
  • N-[[4-(nitrosomethylidene)cyclohexa-2,5-dien-1-ylidene]methyl]hydroxylamine
  • Terephthalaldehyde dioxime #
  • (1E,4E)-terephthalaldehyde oxime
  • (1E,4E)-terephthalaldehyde dioxime
  • 4-((Hydroxyimino)methyl)benzaldehydeoxime
  • doi:10.14272/UFJKQCPYFKAUEO-NXZHAISVSA-N.1
  • (NE)-N-[[4-[(E)-hydroxyiminomethyl]phenyl]methylidene]hydroxylamine

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
164.16 g/molcalc.
Exact mass
164.0586 Dacalc.
LogP (octanol/water)
1.3calc.
Topological polar surface area
65.18 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
12calc.
Rings
1calc.
Aromatic rings
1calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H301Toxic if swallowed.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P405Store locked up.
  • 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

Terephthalaldehyde dioxime suppliers

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Terephthalaldehyde dioxime price

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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 Terephthalaldehyde dioxime is traded under.

HS 2928.00Indicative HS code

Organic derivatives of hydrazine or of hydroxylamine

World exports in 2024
$1.38B
−9.0% vs 2023, imports $1.52B
2019 to 2024
Top exporters
  1. Switzerland * partner reported44.0%
  2. China18.4%
  3. Italy9.4%
Top importers
  1. Brazil21.8%
  2. United States12.8%
  3. Italy10.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Terephthalaldehyde dioxime, based on the data on this page

What is Terephthalaldehyde dioxime?

Terephthalaldehyde dioxime is a chemical substance with the molecular formula C8H8N2O2 and a molar mass of 164.16 g/mol. Its CAS registry number is 18705-39-0. The IUPAC name is (NE)-N-[[4-[(E)-hydroxyiminomethyl]phenyl]methylidene]hydroxylamine.

What is the CAS number of Terephthalaldehyde dioxime?

The CAS registry number of Terephthalaldehyde dioxime is 18705-39-0.

What is the molecular formula and weight of Terephthalaldehyde dioxime?

The molecular formula of Terephthalaldehyde dioxime is C8H8N2O2 and its molar mass is 164.16 g/mol.

What is Terephthalaldehyde dioxime used for?

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

Is Terephthalaldehyde dioxime hazardous?

Terephthalaldehyde dioxime carries the GHS signal word "Danger". Main hazards: toxic if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Terephthalaldehyde dioxime?

Terephthalaldehyde dioxime is usually classified under HS code 292800 (Organic derivatives of hydrazine or of hydroxylamine). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Terephthalaldehyde dioxime?

CompoundList lists 1 supplier of Terephthalaldehyde dioxime in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Terephthalaldehyde dioxime?

Suppliers quote Terephthalaldehyde dioxime 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 Terephthalaldehyde dioxime

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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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