Substance profile
p-mentha-1,3-diene
p-mentha-1,3-diene: CBI; Liquid.
01 · Identification
What p-mentha-1,3-diene is
p-mentha-1,3-diene: CBI; Liquid. It boils at 173 °C, melts at 25 °C, is practically insoluble in water.
Under the GHS it carries the signal word Danger.
02 · Identifiers
p-mentha-1,3-diene identifiers and molecular data
p-mentha-1,3-diene CAS number and EC number
Other names for p-mentha-1,3-diene
- 1-isopropyl-4-methylcyclohexa-1,3-diene
- alpha-terpinene
03 · GHS classification
p-mentha-1,3-diene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
p-mentha-1,3-diene pictograms and signal word
p-mentha-1,3-diene hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 3 | H226 | GHS02 |
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
| Aspiration hazard GHS chapter 3.10 | Category 1 | H304 | GHS08 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 2 | H411 | GHS09 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
p-mentha-1,3-diene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H302 | Harmful if swallowed. |
| H304 | May be fatal if swallowed and enters airways. |
| H317 | May cause an allergic skin reaction. |
| H411 | Toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to p-mentha-1,3-diene. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for p-mentha-1,3-diene
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of p-mentha-1,3-diene issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
p-mentha-1,3-diene precautionary statements
CLP Annex VI assigns 17 precautionary statements to p-mentha-1,3-diene. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
p-mentha-1,3-diene name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | p -мента-1,3-диен 1-изопропил-4-метилциклохекса-1,3-диеналфа-терпинен |
| Spanish español | p -Menta-1,3-dieno 1-isopropil-4-metilciclohexa-1,3-dienoalfa-terpineno |
| Czech čeština | p -mentha-1,3-dien 1-isopropyl-4-methylcyklohexa-1,3-dien α-terpinen |
| Danish dansk | p -mentha-1,3-dien 1-isopropyl-4-methylcyclohexa-1,3-dienalpha-terpinen |
| German Deutsch | p -Mentha-1,3-dien 1-Isopropyl-4-methyl-1,3-cyclohexadienα-Terpinen |
| Estonian eesti | p -menta-1,3-dieen 1-isopropüül-4-metüültsükloheksa-1,3-dieenα-terpineen |
| Greek ελληνικά | π -μενθα-1,3-διένιο 1-ισοπροπυλο-4-μεθυλοκυκλοεξα-1,3-διένιοα-τερπινένιο |
| English English | p -mentha-1,3-diene 1-isopropyl-4-methylcyclohexa-1,3-dienealpha-terpinene |
| French français | p -mentha-1,3-diène 1-isopropyl-4-méthylcyclohexa-1,3-diènealpha-terpinène |
| Croatian hrvatski | p -menta-1,3-dien 1-izopropil-4-metilcikloheksa-1,3-dienalfa-terpinen |
| Italian italiano | p -menta-1,3-diene 1-isopropil-4-metilcicloesa-1,3-diene alfa-terpinene |
| Latvian latviešu | p -menta-1,3-diēns 1-izopropil-4-metilcikloheksa-1,3-diēnsalfa-terpinēns |
| Lithuanian lietuvių | p -menta-1,3-dienas 1-izopropil-4-metilcikloheksa-1,3-dienasα-terpinenas |
| Hungarian magyar | p -menta-1,3-dién 1-izopropil-4-metilciklohexa-1,3-diénalfa-terpinén |
| Maltese Malti | p -menta-1,3-dien 1-isopropil-4-metilċikloeża-1,3-dienalfa-terpinen |
| Dutch Nederlands | p -menta-1,3-dieen 1-isopropyl-4-methylcyclohexa-1,3-dieenalfa-terpineen |
| Polish polski | p -menta-1,3-dien 1-izopropylo-4-metylocykloheksa-1,3-dienalfa-terpinen |
| Portuguese português | p -menta-1,3-dieno 1-isopropil-4-metilciclo-hexa-1,3-dienoalfa-terpineno |
| Romanian română | p -menta-1,3-dienă 1-izopropil-4-metilciclohexa-1,3-dienăalfa-terpinen |
| Slovak slovenčina | p -menta-1,3-dién, 1-izopropyl-4-metylcyklohexa-1,3-dién, alfa-terpinén |
| Slovenian slovenščina | p -menta-1,3-dien 1-izopropil-4-metilcikloheksa-1,3-dienalfa-terpinen |
| Finnish suomi | p -menta-1,3-dieeni 1-isopropyyli-4-metyylisykloheksa-1,3-dieenialfa-terpineeni |
| Swedish svenska | p -menta-1,3-dien 1-isopropyl-4-metylcyklohexa-1,3-dienalfa-terpinen |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
p-mentha-1,3-diene GHS label elements
Everything CLP Annex VI fixes for p-mentha-1,3-diene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
p-mentha-1,3-diene
- Flammable liquid and vapour.
- Harmful if swallowed.
- May be fatal if swallowed and enters airways.
- May cause an allergic skin reaction.
- Toxic to aquatic life with long lasting effects.
- Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- Keep container tightly closed.
- Use explosion-proof [electrical/ventilating/lighting/…] equipment.
- Use only non-sparking tools.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Contaminated work clothing should not be allowed out of the workplace.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Rinse mouth.
- If skin irritation or rash occurs:
- Collect spillage.
- Store in a well-ventilated place.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open p-mentha-1,3-diene in the GHS label constructor →
07 · Health hazards
p-mentha-1,3-diene health hazards and exposure limits
p-mentha-1,3-diene hazard summary
Safe when used as a flavoring agent in food; [JECFA] A skin and strong eye irritant; Higher exposure may cause unconsciousness; Harmful by ingestion, inhalation, and skin absorption; [MP Biomedicals MSDS] See gamma-Terpinene.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
p-mentha-1,3-diene 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.
p-mentha-1,3-diene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 173 °C (343.4 °F) | JECFA | |
| 174 °C (345.2 °F) | range, midpoint shown, at 760 mmHg | HMDB |
p-mentha-1,3-diene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 25 °C (77 °F) | below this value | HMDB |
p-mentha-1,3-diene density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.8355 g/cm³ | range, midpoint shown | JECFA |
p-mentha-1,3-diene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Insoluble in water; soluble in most fixed oils | JECFA | |
| Soluble (in ethanol) | JECFA |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Questions
p-mentha-1,3-diene — frequently asked questions
What is the CAS number of p-mentha-1,3-diene?
The CAS number of p-mentha-1,3-diene is 99-86-5. Its EC number is 202-795-1.
What does a p-mentha-1,3-diene label have to show?
Under CLP Annex VI the label for p-mentha-1,3-diene carries the pictograms Flame, Exclamation mark, Health hazard and Environment and the signal word is Danger.
Is p-mentha-1,3-diene flammable?
Yes. CLP Annex VI assigns p-mentha-1,3-diene H226 — flammable liquid and vapour.
Is p-mentha-1,3-diene a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for p-mentha-1,3-diene. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the boiling point of p-mentha-1,3-diene?
The boiling point reported for p-mentha-1,3-diene is 173 °C (343.4 °F) (JECFA).
What is the melting point of p-mentha-1,3-diene?
The melting point reported for p-mentha-1,3-diene is 25 °C (77 °F), below this value (HMDB).
How should p-mentha-1,3-diene be stored?
CLP Annex VI assigns p-mentha-1,3-diene the storage statement P403.
Nearby
Substances next to p-mentha-1,3-diene
Keep going: substances starting with P, or search the whole database by name, CAS number, pictogram or signal word.