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

Reaction mass of: 1-methyl-1-(3-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxide, 63 % by weight + 1 more

Reaction mass of: 1-methyl-1-(3-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxide, 63 % by weight + 1 more is a chemical substance with the molecular formula C21H28O2.

CAS 71566-50-2 C21H28O2 312.4 g/mol Danger

01 · Identification

What Reaction mass of: 1-methyl-1-(… is

Reaction mass of: 1-methyl-1-(3-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxide, 63 % by weight + 1 more is a chemical substance with the molecular formula C21H28O2. Its molecular formula is C21H28O2 and its molecular weight is 312.4 g/mol.

Under the GHS it carries the signal word Danger.

02 · Identifiers

Reaction mass of: 1-methyl-1-(… identifiers and molecular data

Reaction mass of: 1-methyl-1-(… CAS number and EC number

CAS number71566-50-2
EC number410-840-3
Index number (CLP Annex VI)617-018-00-5

Reaction mass of: 1-methyl-1-(… molecular formula and molecular weight

Molecular formulaC21H28O2
Molecular weight312.4 g/mol

Other names for Reaction mass of: 1-methyl-1-(…

  • reaction mass of: 1-methyl-1-(3-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxide, 63 % by weight
  • 1-methyl-1-(4-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxide, 31 % by weight

03 · GHS classification

Reaction mass of: 1-methyl-1-(… hazard classification

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

Reaction mass of: 1-methyl-1-(… pictograms and signal word

Signal wordDanger

Reaction mass of: 1-methyl-1-(… hazard class and category

GHS hazard classes Reaction mass of… falls into
Hazard class Category From code Pictogram
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.

Reaction mass of: 1-methyl-1-(… hazard statements (H-codes)

Hazard statements assigned to Reaction mass of…
CodeHazard statement
H242 Heating may cause a fire.
H411 Toxic to aquatic life with long lasting effects.

This page lists only the codes assigned to Reaction mass of…. 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 Reaction mass of…

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 Reaction mass of… 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

Reaction mass of: 1-methyl-1-(… precautionary statements

CLP Annex VI assigns 3 precautionary statements to Reaction mass of…. 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

Reaction mass of: 1-methyl-1-(… 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 реакционна маса от: 1-метил-1-(3-(1-метилетил)фенил)етил-1-метил-1-фенилетилпероксид, 63 % тегловни; 1-метил-1-(4-(1-метилетил)фенил)етил-1-метил-1-фенилетилпероксид, 31 % тегловни
Spanish español Masa de reacción de: peróxido de 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletilo, 63 % en peso; peróxido de 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletilo, 31 % en peso
Czech čeština reakční směs: (1-fenyl-1-methylethyl)[1-(3-isopropylfenyl)-1-methylethyl]peroxid (63 % hm.) a (1-fenyl-1-methyl ethyl)[1-(4-isopropylfenyl)-1-methylethyl]peroxid (31 % hm.)
Danish dansk en blanding af 1-methyl-1-(3-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxid, 63 vægtprocent og 1-methyl-1-(4-(1-methyl- ethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxid, 31 vægtprocent
German Deutsch Reaktionsmasse aus 1-Methyl-1-(3-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxid, 63 Gewichts-%, und 1-Methyl-1-(4-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxid, 31 Gewichts-%
Estonian eesti reaktsioonimass: 1-metüül-1-(3-(1-metüületüül)fenüül)etüül-1-metüül-1-fenüületüülperoksiid, 63 massiprotsenti; 1-metüül-1-(4-(1-metüületüül)fenüül)etüül-1-metüül-1-fenüületüülperoksiid, 31 % massiprotsenti
Greek ελληνικά μάζα αντίδρασης από: 1-μεθυλο-1-(3-(1-μεθυλαιθυλο)φαινυλ)αιθυλο-1-μεθυλο-1-φαινυλαιθυλυπεροξείδιο· 63 % κατά βάρος· 1-μεθυλο-1-(4-(1-μεθυλαιθυλο)φαινυλ)αιθυλο-1-μεθυλο-1-φαινυλαιθυλυπεροξείδιο, 31 % κατά βάρος
English English reaction mass of: 1-methyl-1-(3-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxide, 63 % by weight; 1-methyl-1-(4-(1-methylethyl)phenyl)ethyl-1-methyl-1-phenylethylperoxide, 31 % by weight
French français masse de réaction de: 1-méthyl-1-(3-(1-méthyléthyl)phényl)éthyl-1-méthyl-1-phényléthylperoxyde, 63 % en poids; 1-méthyl-1-(4-(1-méthyléthyl)phényl)éthyl-1-méthyl-1-phényléthylperoxyde, 31 % en poids
Croatian hrvatski reakcijska smjesa: 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletilperoksid, 63 % masenog udjela; 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletilperoksid, 31 % masenog udjela
Italian italiano miscela di: perossido di 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletil, 63 % in peso; perossido di 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletil, 31 % in peso
Latvian latviešu reakcijas masa: 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletilperoksīds, 63 % m/m 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletilperoksīds, 31 masas %
Lithuanian lietuvių mišinys: 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletilperoksido, 63 % masės; 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletilperoksido, 31 % masės
Hungarian magyar 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletil-peroxid (63 % w/w); 1-metil-1-(4-(1- metiletil)fenil)etil-1-metil-1-feniletil-peroxid (31 % w/w) keveréke
Maltese Malti massa ta' reazzjoni ta': 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletilperossidu, 63 % skont il-piż; 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletilperossidu, 31 % skont il-piż
Dutch Nederlands reactiemassa van: 1-methyl-1-(3-(1-methylethyl)fenyl)ethyl-1-methyl-1-fenylethylperoxide, 63 gewichtsprocent; 1-methyl-1-(4-(1-methylethyl)fenyl)ethyl-1-methyl-1-fenylethylperoxide, 31 % gewichtsprocent
Polish polski masa poreakcyjna: nadtlenek 1-metylo-1-(3-(1-metyloetylo)fenylo)etylo-1-metylo-1-fenyloetylowy, 63 % wag. nadtlenek 1-metylo-1-(4-(1-metyloetylo)fenylo)etylo-1-metylo-1-fenyloetylowy, 31 % wag.
Portuguese português mistura reacional de: peróxido de 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletilo, 63 % em massa; e peróxido de 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletilo, 31 % em massa
Romanian română amestec de: peroxid de 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletil, 63% în greutate; peroxid de 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletil, 31% în greutate
Slovak slovenčina reakčná zmes zložená z týchto látok: (2-fenylpropán-2-yl)[2-(3-izopropylfenyl)propán-2-yl]peroxid, 63 % hmotnosti; (2-fenylpropán-2-yl)[2-(4-izopropylfenyl)propán-2-yl]peroxid, 31 % hmotnosti
Slovenian slovenščina reakcijska zmes: 1-metil-1-(3-(1-metiletil)fenil)etil-1-metil-1-feniletilperoksida, 63 mas. %; 1-metil-1-(4-(1-metiletil)fenil)etil-1-metil-1-feniletilperoksida, 31 mas. %
Finnish suomi reaktiomassa: 1-metyyli-1-(3-(1-metyylietyyli)fenyyli)etyyli-1-metyyli-1-fenyylietyyliperoksidi, 63 % (painoprosenttia); 1-metyyli-1-(4-(1-metyylietyyli)fenyyli)etyyli-1-metyyli-1-fenyylietyyliperoksidi, 31 % (painoprosenttia)
Swedish svenska reaktionsblandning av: 1-metyl-1-(3-(1-metyletyl)fenyl)etyl-1-metyl-1-fenyletylperoxid, 63 viktprocent; 1-metyl-1-(4-(1-metyletyl)fenyl)etyl-1-metyl-1-fenyletylperoxid, 31 viktprocent

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

Reaction mass of: 1-methyl-1-(… GHS label elements

Everything CLP Annex VI fixes for Reaction mass of…, 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

Reaction mass of: 1-methyl-1-(…

  • Heating may cause a fire.
  • Toxic to aquatic life with long lasting effects.
  • Avoid release to the environment.
  • Collect spillage.
  • Dispose of contents/container to

Supplier name, address and telephone number· Product identifier·Nominal quantity

Need this as an actual label? Open Reaction mass of… in the GHS label constructor →

07 · Questions

Reaction mass of: 1-methyl-1-(… — frequently asked questions

What is the CAS number of Reaction mass of: 1-methyl-1-(…?

The CAS number of Reaction mass of: 1-methyl-1-(… is 71566-50-2. Its EC number is 410-840-3.

What is the chemical formula of Reaction mass of: 1-methyl-1-(…?

The molecular formula of Reaction mass of: 1-methyl-1-(… is C21H28O2 and its molecular weight is 312.4 g/mol.

What does a Reaction mass of: 1-methyl-1-(… label have to show?

Under CLP Annex VI the label for Reaction mass of: 1-methyl-1-(… carries the pictograms Flame and Environment and the signal word is Danger.

Is Reaction mass of: 1-methyl-1-(… flammable?

Yes. CLP Annex VI assigns Reaction mass of: 1-methyl-1-(… H242 — heating may cause a fire.

Is Reaction mass of: 1-methyl-1-(… a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for Reaction mass of: 1-methyl-1-(…. 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.

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