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

Cinerin II

Cinerin II is a viscous liquid.

CAS 121-20-0 C21H28O5 360.4 g/mol Warning

01 · Identification

What Cinerin II is

Cinerin II is a viscous liquid. Its molecular formula is C21H28O5 and its molecular weight is 360.4 g/mol. It is practically insoluble in water.

Under the GHS it carries the signal word Warning.

CAS number121-20-0
EC number204-454-2
Index number613-026-00-8
Molecular formulaC21H28O5
Molecular weight360.4 g/mol

Other names for Cinerin II

  • 3-(but-2-enyl)-2-methyl-4-oxocyclopent-2-enyl 2,2-dimethyl-3-(3-methoxy-2-methyl-3-oxoprop-1-enyl)cyclopropanecarboxylate

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 Cinerin II
CodeHazard statement
H302 Harmful if swallowed.
H400 Very toxic to aquatic life.
H410 Very toxic to aquatic life with long lasting effects.

Precautionary statements: P270, P273, P301, P312, P330, P391, P501

03 · Physical and chemical properties

Cinerin II 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 183 °C (361.4 °F) range, midpoint shown, at 0.001 mmHg (reduced pressure) HSDB
Solubility Insoluble in water HSDB
Soluble in alcohol, petroleum ether (less soluble than cinerin I), kerosene, carbon tetrachloride, ethylene dichloride, nitromethane HSDB
Vapor pressure 4.6e-7 mmHg Haz-Map
Corrosivity Non-corrosive HSDB

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

04 · Handling and storage

Storing and handling Cinerin II

Storage conditions

Pyrethrins with piperonyl butoxide topical preparations should be stored in well-closed containers at a temperature less than 40 °C, preferably between 15-30 °C. /Pyrethrins/

Source: Hazardous Substances Data Bank (HSDB)

Incompatible materials

... Incompatible with lime and ordinary soaps because acids & alkalies speed up processes of hydrolysis. /Pyrethrins/

Source: Hazardous Substances Data Bank (HSDB)

Planning storage for a mix of chemicals? Check Cinerin II in the storage compatibility matrix →

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