Substance profile
Monobenzone
Monobenzone is lustrous leaflets from water and is odorless.
01 · Identification
What Monobenzone is
Monobenzone is lustrous leaflets from water and is odorless. Its molecular formula is C13H12O2 and its molecular weight is 200.23 g/mol. It melts at 123 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Monobenzone identifiers and molecular data
Monobenzone CAS number and EC number
Monobenzone molecular formula and molecular weight
Other names for Monobenzone
- 4-hydroxyphenyl benzyl ether
- hydroquinone monobenzyl ether
03 · GHS classification
Monobenzone hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Monobenzone pictograms and signal word
Monobenzone hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 2A | H319 | GHS07 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
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.
Monobenzone hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H319 | Causes serious eye irritation. |
| H317 | May cause an allergic skin reaction. |
This page lists only the codes assigned to Monobenzone. 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 Monobenzone
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 Monobenzone 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
Monobenzone precautionary statements
CLP Annex VI assigns 9 precautionary statements to Monobenzone. 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.
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
Monobenzone 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 | монобензон бензил-4-хидроксифенилов етермонобензилов етер на хидрохинона |
| Spanish español | Monobenzona éter de 4-hidroxifenilo y benciloéter monobencílico de hidroquinona |
| Czech čeština | monobenzon 4-(benzyloxy)fenolhydrochinonmonobenzylether |
| Danish dansk | monobenzon 4-hydroxyphenyl benzyletherhydroquinon monobenzylether |
| German Deutsch | Monobenzon 4-HydroxyphenylbenzyletherHydrochinonmonobenzylether |
| Estonian eesti | monobensoon 4-hüdroksüfenüülbensüüleeterhüdrokinooni monobensüüleeter |
| Greek ελληνικά | μονοβενζόνη 4-υδροξυφαινυλο-βενζυλαιθέραςμονοβενζυλαιθέρας υδροκινόνης |
| English English | monobenzone 4-hydroxyphenyl benzyl etherhydroquinone monobenzyl ether |
| French français | monobenzone oxyde de 4-hydroxyphényle et de benzyleéther monobenzylique de l'hydroquinone |
| Croatian hrvatski | monobenzon 4-hidroksifenil-benzil-eterhidrokinon-monobenzil-eter |
| Italian italiano | monobenzone 4-idrossifenil benzil eteremonobenzil etere dell'idrochinone |
| Latvian latviešu | monobenzons 4-hidroksifenilbenzilēterishidrohinona monobenzilēteris |
| Lithuanian lietuvių | monobenzonas 4-hidroksifenilbenzilo eterishidrochinono monobenzileteris |
| Hungarian magyar | monobenzon 4-hidroxifenil-benzil-éterhidrokinon-monobenzil-éter |
| Maltese Malti | monobenżon eter tal-benżil ta’ 4-idrossifenileter tal-monobenżil tal-idrokinon |
| Dutch Nederlands | monobenzon 4-hydroxyfenylbenzyletherhydrochinonmonobenzylether |
| Polish polski | monobenzon eter benzylowo-4-hydroksyfenylowyeter monobenzylowy hydrochinonu4-benzyloksyfenol |
| Portuguese português | monobenzona éter benzílico e 4-hidroxifenílicoéter monobenzílico de hidroquinona |
| Romanian română | monobenzonă 4-hidroxifenil-benzil-etereterul monobenzilic al hidrochinonei |
| Slovak slovenčina | monobenzón benzyl(4-hydroxyfenyl)éter4-(benzyloxy)fenol |
| Slovenian slovenščina | monobenzon 4-hidroksifenil benzil eterhidrokinon monobenzil eter |
| Finnish suomi | monobentsoni 4-hydroksifenyylibentsyylieetterihydrokinonimonobentsyylieetteri |
| Swedish svenska | monobenson 4-hydroxifenylbensyleterhydrokinonmonobensyleter |
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
Monobenzone GHS label elements
Everything CLP Annex VI fixes for Monobenzone, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Monobenzone
- Causes serious eye irritation.
- May cause an allergic skin reaction.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Wash … thoroughly after handling.
- Contaminated work clothing should not be allowed out of the workplace.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF IN EYES:
- Get medical advice/attention.
- If skin irritation or rash occurs:
- If eye irritation persists:
- Remove contact lenses, if present and easy to do. Continue rinsing.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Monobenzone in the GHS label constructor →
07 · Physical and chemical properties
Monobenzone 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.
Monobenzone melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 122.5 °C (252.5 °F) | HSDB | |
| 122 °C (251.6 °F) | DrugBank | ||
| 114 °C (237.2 °F) | range, midpoint shown | HMDB |
Monobenzone density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.26 g/cm³ | HSDB |
Monobenzone solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | SOLUBILITY IN BOILNG WATER ABOUT 1.0 G/100 ML; SOL IN ALC, ETHER, BENZENE | HSDB | |
| INSOL IN WATER | HSDB | ||
| FREELY SOL IN ACETONE | HSDB |
Monobenzone vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0000225 mmHg | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
08 · Questions
Monobenzone — frequently asked questions
What is the CAS number of Monobenzone?
The CAS number of Monobenzone is 103-16-2. Its EC number is 203-083-3.
What is the chemical formula of Monobenzone?
The molecular formula of Monobenzone is C13H12O2 and its molecular weight is 200.23 g/mol.
What does a Monobenzone label have to show?
Under CLP Annex VI the label for Monobenzone carries the pictogram Exclamation mark and the signal word is Warning.
Is Monobenzone flammable?
CLP Annex VI assigns Monobenzone no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.
Is Monobenzone a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Monobenzone. 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 melting point of Monobenzone?
The melting point reported for Monobenzone is 122.5 °C (252.5 °F) (HSDB).
Nearby
Substances next to Monobenzone
Keep going: substances starting with M, or search the whole database by name, CAS number, pictogram or signal word.