Substance profile
Ethyl (3-cyanomethyl-3,4-dihydro-4-oxophthalazin-1-yl)acetate
Ethyl (3-cyanomethyl-3,4-dihydro-4-oxophthalazin-1-yl)acetate is a substance with a harmonised classification under EU CLP.
01 · Identification
What Ethyl (3-cyanomethyl-3,4-dihyd… is
Ethyl (3-cyanomethyl-3,4-dihydro-4-oxophthalazin-1-yl)acetate is a substance with a harmonised classification under EU CLP.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Ethyl (3-cyanomethyl-3,4-dihyd… identifiers and molecular data
Ethyl (3-cyanomethyl-3,4-dihyd… CAS number and EC number
03 · GHS classification
Ethyl (3-cyanomethyl-3,4-dihyd… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Ethyl (3-cyanomethyl-3,4-dihyd… pictograms and signal word
Ethyl (3-cyanomethyl-3,4-dihyd… hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 3 | H412 | — |
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-cyanomethyl-3,4-dihyd… hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H317 | May cause an allergic skin reaction. |
| H412 | Harmful to aquatic life with long lasting effects. |
This page lists only the codes assigned to Ethyl (3-cyanomethyl-3,4-d…. 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-cyanomethyl-3,4-d…
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-cyanomethyl-3… 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-cyanomethyl-3,4-dihyd… precautionary statements
CLP Annex VI assigns 7 precautionary statements to Ethyl (3-cyanomethyl-3,4-d…. 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
Ethyl (3-cyanomethyl-3,4-dihyd… 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 (4-оксо-3,4-дихидро-3-цианометилфталазин-1-ил)ацетат |
| Spanish español | (3-Cianometil-3,4-dihidro-4-oxoftalazin-1-il)acetato de etilo |
| Czech čeština | ethyl-(3-kyanmethyl-3,4-dihydro-4-oxoftalazin-1-yl)acetát |
| Danish dansk | ethyl-(3-cyanmethyl-3,4-dihydro-4-oxophthalazin-1-yl)acetat |
| German Deutsch | Ethyl-(3-cyanomethyl-3,4-dihydro-4-oxophthalazin-1-yl)acetat |
| Estonian eesti | etüül-(3-tsüanometüül-3,4-dihüdro-4-oksoftalasiin-1-üül)atsetaat |
| Greek ελληνικά | (3-κυανομεθυλο-3,4-διυδρο-4-οξοφθαλαζιν-1-υλ)οξικός αιθυλεστέρας |
| English English | ethyl (3-cyanomethyl-3,4-dihydro-4-oxophthalazin-1-yl)acetate |
| French français | (3-cyanométhyl-3,4-dihydro-4-oxophtalazin-1-yl)acétate d'éthyle |
| Croatian hrvatski | etil-(3-cijanometil-3,4-dihidro-4-oksoftalazin-1-il)acetat |
| Italian italiano | (3-cianometil-3,4-diidro-4-ossoftalazin-1-il)acetato di etile |
| Latvian latviešu | etil-(3-ciānmetil-3,4-dihidro-4-oksoftalazīn-1-il)acetāts |
| Lithuanian lietuvių | etil-(3-cianometil-3,4-dihidro-4-oksoftalazin-1-il)etanoatas |
| Hungarian magyar | etil-(3-cianometil-3,4-dihidro-4-oxoftalazin-1-il)acetát |
| Maltese Malti | (3-ċjanometil-3,4-diidro-4-ossoftalażin-1-il)aċetat tal-etil |
| Dutch Nederlands | ethyl-(3-cyaanmethyl-3,4-dihydro-4-oxoftalazine-1-yl)acetaat |
| Polish polski | (3-cyjanometylo-3,4-dihydro-4-oksoftalazyn-1-ylo)octan etylu |
| Portuguese português | (3-cianometil-3,4-di-hidro-4-oxoftalazin-1-il)acetato de etilo |
| Romanian română | (3-ciano-metil-3,4-dihidro-4-oxoftalazin-1-il)acetat de etil |
| Slovak slovenčina | O- etyl-[3-(kyanometyl)-4-oxo-3,4- dihydroftalazín-1-yl]acetát |
| Slovenian slovenščina | etil (3-cianometil-3,4-dihidro-4-oksoftalazin-1-il)acetat |
| Finnish suomi | etyyli-(3-syaanimetyyli-3,4-dihydro-4-oksoftalatsin-1-yyli)asetaatti |
| Swedish svenska | etyl(3-cyanometyl-3,4-dihydro-4-oxoftalazin-1-yl)acetat |
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-cyanomethyl-3,4-dihyd… GHS label elements
Everything CLP Annex VI fixes for Ethyl (3-cyanomethyl-3,4-d…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Ethyl (3-cyanomethyl-3,4-dihyd…
- May cause an allergic skin reaction.
- Harmful to aquatic life with long lasting effects.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- 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/…
- Get medical advice/attention.
- If skin irritation or rash occurs:
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Ethyl (3-cyanomethyl-3,4-d… in the GHS label constructor →
07 · Transport
Ethyl (3-cyanomethyl-3,4-dihyd… UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Ethyl (3-cyanomethyl-3,4-dihyd… under UN 1173 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| ETHYL ACETATE | 3 | F1 | II | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 3 is “Flammable liquids” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Ethyl acetate | 3 | II | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 3 is “Flammable and combustible liquid” (49 CFR 173.2).
08 · Questions
Ethyl (3-cyanomethyl-3,4-dihyd… — frequently asked questions
What is the CAS number of Ethyl (3-cyanomethyl-3,4-dihyd…?
The CAS number of Ethyl (3-cyanomethyl-3,4-dihyd… is 122665-86-5. Its EC number is 429-680-0.
What does a Ethyl (3-cyanomethyl-3,4-dihyd… label have to show?
Under CLP Annex VI the label for Ethyl (3-cyanomethyl-3,4-dihyd… carries the pictogram Exclamation mark and the signal word is Warning.
Is Ethyl (3-cyanomethyl-3,4-dihyd… flammable?
CLP Annex VI assigns Ethyl (3-cyanomethyl-3,4-dihyd… 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 Ethyl (3-cyanomethyl-3,4-dihyd… a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Ethyl (3-cyanomethyl-3,4-dihyd…. 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.
Nearby
Substances next to Ethyl (3-cyanomethyl-3,4-d…
Keep going: substances starting with E, or search the whole database by name, CAS number, pictogram or signal word.