Substance profile
2-Thiophenecarboxylic acid, 3-(isocyanatosulfonyl)-, methyl ester
2-Thiophenecarboxylic acid, 3-(isocyanatosulfonyl)-, methyl ester: CBI; Liquid.
01 · Identification
What 2-Thiophenecarboxylic acid… is
2-Thiophenecarboxylic acid, 3-(isocyanatosulfonyl)-, methyl ester: CBI; Liquid. Its molecular formula is C7H5NO5S2 and its molecular weight is 247.3 g/mol.
Under the GHS it carries the signal word Danger.
02 · Identifiers
2-Thiophenecarboxylic acid… identifiers and molecular data
2-Thiophenecarboxylic acid… CAS number and EC number
2-Thiophenecarboxylic acid… molecular formula and molecular weight
Other names for 2-Thiophenecarboxylic acid…
- methyl 3-isocyanatosulfonyl-2-thiophene-carboxylate
03 · GHS classification
2-Thiophenecarboxylic acid… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
2-Thiophenecarboxylic acid… pictograms and signal word
2-Thiophenecarboxylic acid… hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Respiratory sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H334 | GHS08 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 2 | H373 | GHS08 |
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.
2-Thiophenecarboxylic acid… hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled. |
| H317 | May cause an allergic skin reaction. |
2-Thiophenecarboxylic acid… supplemental EU statements (EUH)
| Code | Statement |
|---|---|
| EUH014 | Reacts violently with water. |
This page lists only the codes assigned to 2-Thiophenecarboxylic…. 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 2-Thiophenecarboxylic…
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 2-Thiophenecarboxylic… 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
2-Thiophenecarboxylic acid… precautionary statements
CLP Annex VI assigns 8 precautionary statements to 2-Thiophenecarboxylic…. 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
2-Thiophenecarboxylic acid… 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 | метилов 3-изоцианатосулфонил-2-тиофенкарбоксилат |
| Spanish español | 3-Isocianatosulfonil-2-tiofeno-carboxilato de metilo |
| Czech čeština | methyl-3-(isokyanatosulfonyl)thiofen-2-karboxylát |
| Danish dansk | methyl-3-isocyanatosulfonyl-2-thiophencarboxylat |
| German Deutsch | Methyl-3-sulfonylisocyanat-2-thiophencarboxylat |
| Estonian eesti | metüül-3-isotsüanatosulfonüül-2-tiofeenkarboksülaat |
| Greek ελληνικά | 3-ισoκυανoσoυλφoνυλo-2-θειoφαινoκαρβoξυλικό μεθύλιo 3-ισoκυανoσoυλφoνυλo-2-θειoφαινoκαρβoξυλικός μεθυλεστέρας |
| English English | methyl 3-isocyanatosulfonyl-2-thiophene-carboxylate |
| French français | 3-isocyanatosulfonyl-2-thiophène-carboxylate de méthyle |
| Croatian hrvatski | metil 3-izocijanatosulfonil-2-tiofen-karboksilat |
| Italian italiano | 3-isocianatosolfonil-2-tiofen-carbossilato di metile |
| Latvian latviešu | metil-3-izocianatosulfonil-2-tiofēn-karboksilāts |
| Lithuanian lietuvių | metil-3-izocianatosulfonil-2-tiofenkarboksilatas |
| Hungarian magyar | metil-3-izocianátoszulfonil-2-tiofénkarboxilát |
| Maltese Malti | metil 3-isoċjanatosulfonil-2-tiofen-karbossilat |
| Dutch Nederlands | methyl-3-isocyanatosulfonyl-2-thiofeencarboxylaat |
| Polish polski | 3-(izocyjanianosulfonylo)tiofeno-2-karboksylan metylu |
| Portuguese português | 3-isocianatossulfonil-2-tiofenocarboxilato de metilo |
| Romanian română | 3-izocianatosulfonil-2-tiofen-carboxilat de metil |
| Slovak slovenčina | O -metyl-3-(izokyanátosulfonyl)tiofén-2-karboxylát |
| Slovenian slovenščina | metil 3-izocianatosulfonil-2-tiofen-karboksilat |
| Finnish suomi | metyyli-3-isosyanaattosulfonyyli-2-tiofeenikarboksylaatti |
| Swedish svenska | metyl-3-isocyanatosulfonyl-2-tiofenkarboxylat |
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
2-Thiophenecarboxylic acid… GHS label elements
Everything CLP Annex VI fixes for 2-Thiophenecarboxylic…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
2-Thiophenecarboxylic acid…
- May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- May cause an allergic skin reaction.
- Reacts violently with water.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Contaminated work clothing should not be allowed out of the workplace.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- Get medical advice/attention.
- Get medical advice/attention if you feel unwell.
- If skin irritation or rash occurs:
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open 2-Thiophenecarboxylic… in the GHS label constructor →
07 · Questions
2-Thiophenecarboxylic acid… — frequently asked questions
What is the CAS number of 2-Thiophenecarboxylic acid…?
The CAS number of 2-Thiophenecarboxylic acid… is 79277-18-2. Its EC number is 410-550-7.
What is the chemical formula of 2-Thiophenecarboxylic acid…?
The molecular formula of 2-Thiophenecarboxylic acid… is C7H5NO5S2 and its molecular weight is 247.3 g/mol.
What does a 2-Thiophenecarboxylic acid… label have to show?
Under CLP Annex VI the label for 2-Thiophenecarboxylic acid… carries the pictogram Health hazard and the signal word is Danger.
Is 2-Thiophenecarboxylic acid… flammable?
CLP Annex VI assigns 2-Thiophenecarboxylic acid… 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 2-Thiophenecarboxylic acid… a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for 2-Thiophenecarboxylic acid…. 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 2-Thiophenecarboxylic…
Keep going: substances starting with 0–9, or search the whole database by name, CAS number, pictogram or signal word.