Provenance

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

Build a label

Substance profile

Ethyl 3,3-bis(tert-pentylperoxy)butyrate

Ethyl 3,3-bis(tert-pentylperoxy)butyrate is a chemical substance with the molecular formula C16H32O6.

CAS 67567-23-1 C16H32O6 320.42 g/mol Danger

01 · Identification

What Ethyl 3,3-bis(tert-pentylperox… is

Ethyl 3,3-bis(tert-pentylperoxy)butyrate is a chemical substance with the molecular formula C16H32O6. Its molecular formula is C16H32O6 and its molecular weight is 320.42 g/mol.

Under the GHS it carries the signal word Danger.

02 · Identifiers

Ethyl 3,3-bis(tert-pentylperox… identifiers and molecular data

Ethyl 3,3-bis(tert-pentylperox… CAS number and EC number

CAS number67567-23-1
EC number403-320-2
Index number (CLP Annex VI)607-213-00-3

Ethyl 3,3-bis(tert-pentylperox… molecular formula and molecular weight

Molecular formulaC16H32O6
Molecular weight320.42 g/mol

03 · GHS classification

Ethyl 3,3-bis(tert-pentylperox… hazard classification

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

Ethyl 3,3-bis(tert-pentylperox… pictograms and signal word

Signal wordDanger

Ethyl 3,3-bis(tert-pentylperox… hazard class and category

GHS hazard classes Ethyl 3,3-bis(tert-pentylp… falls into
Hazard class Category From code Pictogram
Flammable liquids GHS chapter 2.6 Category 3 H226 GHS02
Organic peroxides or Self-reactive substances and mixtures Category Type C and D or Type E and F H242 GHS02
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.

Ethyl 3,3-bis(tert-pentylperox… hazard statements (H-codes)

Hazard statements assigned to Ethyl 3,3-bis(tert-pentylp…
CodeHazard statement
H226 Flammable liquid and vapour.
H242 Heating may cause a fire.
H411 Toxic to aquatic life with long lasting effects.

This page lists only the codes assigned to Ethyl 3,3-bis(tert-pentylp…. 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 Ethyl 3,3-bis(tert-pentylp…

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 Ethyl 3,3-bis(tert-pen… 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

Ethyl 3,3-bis(tert-pentylperox… precautionary statements

CLP Annex VI assigns 8 precautionary statements to Ethyl 3,3-bis(tert-pentylp…. 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.

Response

What to do once exposure, spillage or fire has already happened.

Storage

How the container has to be kept between uses.

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

Ethyl 3,3-bis(tert-pentylperox… 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 етилов 3,3-бис( трет -пентилперокси)бутират
Spanish español 3,3-Bis( terc -pentilperoxi)butirato de etilo
Czech čeština ethyl-3,3-bis( terc -pentylperoxy)butanoát
Danish dansk ethyl-3,3-bis( tert -pentylperoxy)butyrat
German Deutsch Ethyl-3,3-bis( tert -pentylperoxy)butyrat
Estonian eesti etüül-3,3-bis( tert -pentüülperoksü)butüraat
Greek ελληνικά 3,3-δις( tert -πεντυλυπερoξυ)βoυτυρικός αιθυλεστέρας 3,3-δις( tert -πεντυλυπερoξυ)βoυτυρικό αιθύλιo
English English ethyl 3,3-bis( tert -pentylperoxy)butyrate
French français 3,3-bis( tert -pentylperoxy)butyrate d'éthyle
Croatian hrvatski etil-3,3-bis( tert -pentilperoksi)butirat
Italian italiano 3,3-bis( terz -pentilperossi)butirrato di etile
Latvian latviešu etil-3,3-bis( terc -pentilperoksi)butirāts
Lithuanian lietuvių etil-3,3-bis( tret -pentilperoksi) butanoatas
Hungarian magyar etil-3,3-bisz( terc -pentilperoxi)butirát
Maltese Malti 3,3-bis( tert -pentilperossi)butirat tal-etil
Dutch Nederlands ethyl-3,3-bis( tert -pentylperoxy)butyraat
Polish polski 3,3-bis( tert -pentyloperoksy)maślan etylu 3,3-bis[(1,1-dimetylopropylo)peroksy]butanian etylu
Portuguese português 3,3-bis( terc -pentilperoxi)butirato de etilo
Romanian română 3,3-bis( terț -pentilperoxi)butirat de etil
Slovak slovenčina O -etyl-3,3-bis( terc -pentylperoxy)butanoát
Slovenian slovenščina etil 3,3-bis( terc -pentilperoksi)butirat
Finnish suomi etyyli-3,3-bis( tert -pentyyliperoksi)butyraatti
Swedish svenska etyl-3,3-bis( tert -pentylperoxi)butyrat

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

Ethyl 3,3-bis(tert-pentylperox… GHS label elements

Everything CLP Annex VI fixes for Ethyl 3,3-bis(tert-pentylp…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.

GHS02 Flame pictogramGHS09 Environment pictogram

Danger

Ethyl 3,3-bis(tert-pentylperox…

  • Flammable liquid and vapour.
  • Heating may cause a fire.
  • 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 release to the environment.
  • 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 Ethyl 3,3-bis(tert-pentylp… in the GHS label constructor →

07 · Questions

Ethyl 3,3-bis(tert-pentylperox… — frequently asked questions

What is the CAS number of Ethyl 3,3-bis(tert-pentylperox…?

The CAS number of Ethyl 3,3-bis(tert-pentylperox… is 67567-23-1. Its EC number is 403-320-2.

What is the chemical formula of Ethyl 3,3-bis(tert-pentylperox…?

The molecular formula of Ethyl 3,3-bis(tert-pentylperox… is C16H32O6 and its molecular weight is 320.42 g/mol.

What does a Ethyl 3,3-bis(tert-pentylperox… label have to show?

Under CLP Annex VI the label for Ethyl 3,3-bis(tert-pentylperox… carries the pictograms Flame and Environment and the signal word is Danger.

Is Ethyl 3,3-bis(tert-pentylperox… flammable?

Yes. CLP Annex VI assigns Ethyl 3,3-bis(tert-pentylperox… H226 and H242 — flammable liquid and vapour.

Is Ethyl 3,3-bis(tert-pentylperox… a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for Ethyl 3,3-bis(tert-pentylperox…. 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.

How should Ethyl 3,3-bis(tert-pentylperox… be stored?

CLP Annex VI assigns Ethyl 3,3-bis(tert-pentylperox… the storage statement P403.

Get the free GHS / CLP / OSHA deadline calendar

Verified 2026–2029 compliance dates in one PDF — plus alerts when the rules change.