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| Cas Number | 106-51-4 |
| Chemical Name | p-benzoquinone |
| Chemical Synonym |
quinone 1,4-quinone 1,4-benzoquine 1,4-cyclohexadiene dioxide cyclohexa-2,5-diene-1,4-dione 2,5-Cyclohexadiene-1,4-dione |
| Hazard Category |
Acute toxicity (ingestion) - category 3 Acute toxicity (inhalation) - category 3 Skin irritation – category 2 Eye irritation – category 2A Skin sensitisation – category 1B Specific target organ toxicity (single exposure) – category 3 Germ cell mutagenicity – category 2 |
| Hazard Statement |
H301 (Toxic if swallowed) H331 (Toxic if inhaled) H315 (Causes skin irritation) H319 (Causes serious eye irritation) H317 (May cause an allergic skin reaction) H335 (May cause respiratory irritation) H341 (Suspected of causing genetic defects) |
| Pictogram |
GHS06 (Skull and Crossbones) 
GHS08 (Health Hazard) |
| 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.) |
| Sources |
A (The classification information for this entry was provided by the Australian Industrial Chemicals Introduction Scheme) |
Hazardous Chemical History
| Date | Description |
|---|---|
| 09/08/2023 |
Pictogram modified from [GHS06,GHS08,GHS09] to [GHS06,GHS08] Hazard Statement modified from [H301 Toxic if swallowed; H331 Toxic if inhaled; H315 Causes skin irritation; H319 Causes serious eye irritation; H317 May cause an allergic skin reaction; H335 May cause respiratory irritation; H341 Suspected of causing genetic defects; H400 Very toxic to aquatic life] to [H301 Toxic if swallowed; H331 Toxic if inhaled; H315 Causes skin irritation; H319 Causes serious eye irritation; H317 May cause an allergic skin reaction; H335 May cause respiratory irritation; H341 Suspected of causing genetic defects] |
| 09/08/2023 |
Hazard Category modified from [HC071:Acute toxicity (ingestion) - category 3, HC066:Acute toxicity (inhalation) - category 3, HC083:Skin irritation – category 2, HC087:Eye irritation – category 2A, HC094:Skin sensitisation – category 1B, HC110:Specific target organ toxicity (single exposure) – category 3, HC098:Germ cell mutagenicity – category 2, HC115:Hazardous to the aquatic environment (acute) – category 1] to [HC071:Acute toxicity (ingestion) - category 3, HC066:Acute toxicity (inhalation) - category 3, HC083:Skin irritation – category 2, HC087:Eye irritation – category 2A, HC094:Skin sensitisation – category 1B, HC110:Specific target organ toxicity (single exposure) – category 3, HC098:Germ cell mutagenicity – category 2] |
| 09/08/2023 |
Pictogram modified from [GHS06,GHS08] to [GHS06,GHS08,GHS09] Sources modified from [A,EU] to [A] |
| 09/08/2023 |
CutOffs modified from [ M = 10 (acute) ]to [] Synonym modified from [ quinone] to [quinone; 1,4-quinone; 1,4-benzoquine; 1,4-cyclohexadiene dioxide; cyclohexa-2,5-diene-1,4-dione; 2,5-Cyclohexadiene-1,4-dione] Hazard Category modified from [HC061:Acute toxicity – category 3, HC061:Acute toxicity – category 3, HC086:Eye irritation – category 2, HC110:Specific target organ toxicity (single exposure) – category 3, HC115:Hazardous to the aquatic environment (acute) – category 1, HC083:Skin irritation – category 2] to [HC071:Acute toxicity (ingestion) - category 3, HC066:Acute toxicity (inhalation) - category 3, HC083:Skin irritation – category 2, HC087:Eye irritation – category 2A, HC094:Skin sensitisation – category 1B, HC110:Specific target organ toxicity (single exposure) – category 3, HC098:Germ cell mutagenicity – category 2, HC115:Hazardous to the aquatic environment (acute) – category 1] Pictogram modified from [GHS06,GHS09] to [GHS06,GHS08] Hazard Statement modified from [H331 Toxic if inhaled; H301 Toxic if swallowed; H319 Causes serious eye irritation; H335 May cause respiratory irritation; H315 Causes skin irritation; H400 Very toxic to aquatic life] to [H301 Toxic if swallowed; H331 Toxic if inhaled; H315 Causes skin irritation; H319 Causes serious eye irritation; H317 May cause an allergic skin reaction; H335 May cause respiratory irritation; H341 Suspected of causing genetic defects; H400 Very toxic to aquatic life] Sources modified from [EU] to [A,EU] |
| 09/08/2023 |
CutOffs modified from [] to [ M = 10 (acute) ]Hazard Category modified from [HC061:Acute toxicity – category 3, HC061:Acute toxicity – category 3, HC086:Eye irritation – category 2, HC110:Specific target organ toxicity (single exposure) – category 3, HC115:Hazardous to the aquatic environment (acute) – category 1, HC083:Skin irritation – category 2] to [HC061:Acute toxicity – category 3, HC061:Acute toxicity – category 3, HC083:Skin irritation – category 2, HC086:Eye irritation – category 2, HC110:Specific target organ toxicity (single exposure) – category 3, HC115:Hazardous to the aquatic environment (acute) – category 1] |
| 25/11/2016 |
Hazard Category modified from [HC061:Acute toxicity – category 3, HC061:Acute toxicity – category 3, HC086:Eye irritation – category 2, HC110:Specific target organ toxicity (single exposure) – category 3, HC115:Hazardous to the aquatic environment (acute) – category 1] to [HC061:Acute toxicity – category 3, HC061:Acute toxicity – category 3, HC086:Eye irritation – category 2, HC110:Specific target organ toxicity (single exposure) – category 3, HC115:Hazardous to the aquatic environment (acute) – category 1, HC083:Skin irritation – category 2] |
| 23/06/2016 | Chemical Added |