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

Benquinox

Benquinox is yellow-brown powder; yellow crystals from ethanol.

CAS 495-73-8 C13H11N3O2 241.24 g/mol Danger

01 · Identification

What Benquinox is

Benquinox is yellow-brown powder; yellow crystals from ethanol. Its molecular formula is C13H11N3O2 and its molecular weight is 241.24 g/mol.

Under the GHS it carries the signal word Danger.

02 · Identifiers

Benquinox identifiers and molecular data

Benquinox CAS number and EC number

CAS number495-73-8
EC number207-807-9
Index number (CLP Annex VI)650-006-00-8

Benquinox molecular formula and molecular weight

Molecular formulaC13H11N3O2
Molecular weight241.24 g/mol

Other names for Benquinox

  • benquinox (ISO)
  • p-benzoquinone 1-benzoylhydrazone 4-oxime

03 · GHS classification

Benquinox hazard classification

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

Benquinox pictograms and signal word

Signal wordDanger

Benquinox hazard class and category

GHS hazard classes Benquinox falls into
Hazard class Category From code Pictogram
Acute toxicity - oral GHS chapter 3.1 Category 3 H301 GHS06
Acute toxicity - dermal GHS chapter 3.1 Category 4 H312 GHS07

Benquinox hazard statements (H-codes)

Hazard statements assigned to Benquinox
CodeHazard statement
H301 Toxic if swallowed.
H312 Harmful in contact with skin.

This page lists only the codes assigned to Benquinox. 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 Benquinox

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 Benquinox 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

Benquinox precautionary statements

CLP Annex VI assigns 8 precautionary statements to Benquinox. 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.

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

Benquinox 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 бенхинокс (ISO) p -бензохинон-1-бензоилхидразон-4-оксим
Spanish español Benquinox (ISO) p -benzoquinona-1-benzoilhidrazona-4-oxima
Czech čeština benchinox (ISO) N -[4-(hydroxyimino)cyklohexa-2,5-dien-1-yliden]benzohydrazid
Danish dansk benquinox (ISO) p -benzoquinon-1-benzoylhy drazon-4-oxim
German Deutsch Benchinox (ISO) p -Benzoquinon-1-benzoylhydrazon-4-oxim
Estonian eesti benkinoks (ISO) p -bensokinoon-1-bensoüülhüdrasoon-4-oksiim
Greek ελληνικά benquinox (βενκινόξη) (ISO) p -βενζοκινονο-1-βενζοϋλυδραζον-4-οξίμη
English English benquinox (ISO) p -benzoquinone 1-benzoylhydrazone 4-oxime
French français Benquinox (ISO) p -benzoquinone 1-benzoylhydrazone-4-oxime
Croatian hrvatski benkinos (ISO) p -benzokvinon-1-benzoilhidrazon-4-oksim
Italian italiano benquinox (ISO) p- benzochinon-1-benzoilidrazon-4-ossima
Latvian latviešu benhinokss (ISO) p -benzohinona 1-benzoilhidrazona 4-oksīms
Lithuanian lietuvių benkvinoksas (ISO) p -benzochinon-1-benzoilhidrazon-4-oksimas
Hungarian magyar benkvinox (ISO) p -benzokinon-1-benzoilhidrazon-4-oxim
Maltese Malti benkinoks (ISO) 4-ossima ta’ 1-benżojlidrażon ta’ p -benżokwinon
Dutch Nederlands benquinox (ISO) p -benzochinon-1-benzoylhydrazon-4-oxim
Polish polski Benchinoks (ISO) 1-benzoilohydrazon 4-oksym p-benzochinonu
Portuguese português benquinox (ISO) 1-benzoil-hidrazona-4-oxima de p- benzoquinona
Romanian română benquinox (ISO) p -benzochinon-1 – benzoil-hidrazon-4- oximă
Slovak slovenčina benchinox (ISO) para -benzochinón-1-(benzoylhydrazón)-4-oxím
Slovenian slovenščina benkinoks (ISO) p -benzokinon 1-benzoilhidrazon 4-oksim
Finnish suomi benkinoksi (ISO) p -bentsokinoni-1-bentsoyylihydratsoni-4-oksiimi
Swedish svenska benkvinox (ISO) p -bensokinon-1-bensoylhydrazon-4-oxim

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

Benquinox GHS label elements

Everything CLP Annex VI fixes for Benquinox, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.

GHS06 Skull and crossbones pictogram

Danger

Benquinox

  • Toxic if swallowed.
  • Harmful in contact with skin.
  • Do not eat, drink or smoke when using this product.
  • Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/
  • IF SWALLOWED:
  • IF ON SKIN:
  • Immediately call a POISON CENTER/doctor/
  • Call a POISON CENTER/doctor/ if you feel unwell.
  • Rinse mouth.
  • Wash with plenty of water/

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

Need this as an actual label? Open Benquinox in the GHS label constructor →

07 · Physical and chemical properties

Benquinox 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.

Benquinox solubility

Property Value Conditions Source
Solubility IN WATER 5 PPM; SOL IN ORGANIC SOLVENTS HSDB
SOL IN FORMAMIDE HSDB

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

08 · Questions

Benquinox — frequently asked questions

What is the CAS number of Benquinox?

The CAS number of Benquinox is 495-73-8. Its EC number is 207-807-9.

What is the chemical formula of Benquinox?

The molecular formula of Benquinox is C13H11N3O2 and its molecular weight is 241.24 g/mol.

What does a Benquinox label have to show?

Under CLP Annex VI the label for Benquinox carries the pictogram Skull and crossbones and the signal word is Danger.

Is Benquinox flammable?

CLP Annex VI assigns Benquinox 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 Benquinox a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for Benquinox. 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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