Hazardous Chemical Information System (HCIS)



Hazardous Chemical Details

Cas Number 99-86-5
Chemical Name 1,3-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Chemical Synonym p-mentha-1,3-diene
1-isopropyl-4-methylcyclohexa-1,3-diene
alpha-terpinene
Hazard Category Aspiration hazard – category 1
Skin sensitisation – category 1B
Flammable liquid – category 3
Hazardous to the aquatic environment (chronic) – category 3
Hazard Statement H304 (May be fatal if swallowed and enters airways)
H317 (May cause an allergic skin reaction)
H226 (Flammable liquid and vapour)
H412 (Harmful to aquatic life with long-lasting effects)
Pictogram Pictogram of Exclamation Mark GHS07 (Exclamation Mark)
Pictogram of Health Hazard GHS08 (Health Hazard)
Pictogram of 
Flame
GHS02 ( Flame )
Signal Word Danger
Cut-offs
Notes 8 (The tables in schedule 6 of the WHS regulations replace some tables in the GHS, this may affect the cut off concentrations for this chemical.)
9 (The aspiration hazard classification should only be applied if the kinematic viscosity criteria for aspiration classification in the GHS is met.)
Sources N (The classification information for this entry was provided by the National Industrial Chemical Notification and Assessment Scheme)
EU (Classification information for chemical is taken from the European Union’s Classification, Labelling and Packaging (CLP) Regulation.)

Hazardous Chemical History

Date Description
09/08/2023 Synonym modified from
[]
to
[p-mentha-1,3-diene ;
1-isopropyl-4-methylcyclohexa-1,3-diene;
alpha-terpinene]
Hazard Category modified from
[HC113:Aspiration hazard – category 1,
HC094:Skin sensitisation – category 1B]

to
[HC113:Aspiration hazard – category 1,
HC094:Skin sensitisation – category 1B,
HC023:Flammable liquid – category 3,
HC120:Hazardous to the aquatic environment (chronic) – category 3]

Pictogram modified from
[GHS07,GHS08]
to
[GHS07,GHS08,GHS02]
Hazard Statement modified from
[H304 May be fatal if swallowed and enters airways;
H317 May cause an allergic skin reaction]
to
[H304 May be fatal if swallowed and enters airways;
H317 May cause an allergic skin reaction;
H226 Flammable liquid and vapour;
H412 Harmful to aquatic life with long-lasting effects]
Sources modified from
[N]
to
[N,EU]
09/03/2021 Chemical Added