Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

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Substance profile

2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione

2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione is a white solid.

CAS 20354-26-1 C9H6Cl2N2O3 261.06 g/mol Warning

01 · Identification

What 2-(3,4-dichlorophenyl)-4-methy… is

2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione is a white solid. Its molecular formula is C9H6Cl2N2O3 and its molecular weight is 261.06 g/mol. It melts at 124 °C.

Under the GHS it carries the signal word Warning.

CAS number20354-26-1
EC number243-761-6
Index number606-033-00-2
Molecular formulaC9H6Cl2N2O3
Molecular weight261.06 g/mol

Other names for 2-(3,4-dichlorophenyl)-4-methy…

  • methazole

02 · GHS classification

Hazards and label elements

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Signal wordWarning
Hazard statements assigned to 2-(3,4-dichlorophenyl)-4-methy…
CodeHazard statement
H312 Harmful in contact with skin.
H302 Harmful if swallowed.
H315 Causes skin irritation.
H319 Causes serious eye irritation.
H411 Toxic to aquatic life with long lasting effects.

Precautionary statements: P264, P270, P273, P280, P301, P302, P305, P312, P313, P330, P332, P337, P338, P352, P391, P501

03 · Physical and chemical properties

2-(3,4-dichlorophenyl)-4-methy… properties

Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.

Property Value Conditions Source
Boiling point Decomposes before boiling decomposes HSDB
Melting point 123.5 °C (254.3 °F) range, midpoint shown HSDB
Density 1.24 g/cm³ at 25 °C HSDB
Solubility @ 25 °C: 1.5 MG/L WATER, 40 G/L ACETONE, 6.5 G/L METHANOL, 55 G/L XYLENE at 25 °C HSDB
@ 25 °C in ethanol approx equal to 1.0% wt/wt at 25 °C HSDB
Vapor pressure 0.000001 mmHg Haz-Map
133 uPa at 25 °C at 25 °C HSDB
Corrosivity Non-corrosive to metals HSDB

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

04 · Handling and storage

Storing and handling 2-(3,4-dichlorophenyl)-4-methy…

Reactivity

METHAZOLE is an oxadiazole.

Source: CAMEO Chemicals

Planning storage for a mix of chemicals? Check 2-(3,4-dichlorophenyl)-4… in the storage compatibility matrix →

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