Substance profile
Potassium,sodium 2,4-diamino-3-[4-(2-sulfonatoethoxysulfonyl)phenylazo]-5-[4-(2-sulfonatoethoxysulfonyl)-2-sulfonatophenylazo]-benzenesulfonate
Potassium,sodium 2,4-diamino-3-[4-(2-sulfonatoethoxysulfonyl)phenylazo]-5-[4-(2-sulfonatoethoxysulfonyl)-2-sulfonatophenylazo]-benzenesulfonate is a chemical substance with the molecular formula C22H20K2N6Na2O18S6.
01 · Identification
What Potassium,sodium 2,4-diamino-3… is
Potassium,sodium 2,4-diamino-3-[4-(2-sulfonatoethoxysulfonyl)phenylazo]-5-[4-(2-sulfonatoethoxysulfonyl)-2-sulfonatophenylazo]-benzenesulfonate is a chemical substance with the molecular formula C22H20K2N6Na2O18S6. Its molecular formula is C22H20K2N6Na2O18S6 and its molecular weight is 973 g/mol.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Potassium,sodium 2,4-diamino-3… identifiers and molecular data
Potassium,sodium 2,4-diamino-3… CAS number and EC number
Potassium,sodium 2,4-diamino-3… molecular formula and molecular weight
03 · GHS classification
Potassium,sodium 2,4-diamino-3… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Potassium,sodium 2,4-diamino-3… pictograms and signal word
Potassium,sodium 2,4-diamino-3… hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 1 | H318 | GHS05 |
Potassium,sodium 2,4-diamino-3… hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H318 | Causes serious eye damage. |
This page lists only the codes assigned to Potassium,sodium…. 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 Potassium,sodium…
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 Potassium,sodium… 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
Potassium,sodium 2,4-diamino-3… precautionary statements
CLP Annex VI assigns 4 precautionary statements to Potassium,sodium…. 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
Potassium,sodium 2,4-diamino-3… 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 | калиев натриев 2,4-диамино-3-[4-(2- сулфонатоетоксисулфонил)фенилазо]-5-[4-(2-сулфонатоетоксисулфонил)-2-сулфонатофенилазо]бензенсулфонат |
| Spanish español | 2,4-Diamino-3-[4-(2-sulfonatoetoxisulfonil)fenilazo]-5-[4-(2-sulfonatoetoxisulfonil)-2-sulfonatofenilazo]-bencenosulfonato de potasio y sodio |
| Czech čeština | kalium-natrium-2,4-diamino-3-[(4-{[2-(sulfonatooxy)ethyl]sulfonyl}fenyl)azo]-5-[(2-sulfonato-4-{[2-(sulfonatooxy)ethyl]sulfonyl}fenyl)azo]benzen-1-sulfonát |
| Danish dansk | kalium, natrium 2,4-diamino-3-[4-(2-sulfonatoethoxysulfonyl)phenylazo]-5-[4-(2-sulfonatoethoxysulfonyl)-2-sulfonatophenylazo]-benzensulfonat |
| German Deutsch | Kalium, Natrium-2,4-diamino-3-[4-(2-sulfonatoethoxysulfonyl)phenylazo]-5-[4-(2-sulfonatoethoxysulfonyl)-2-sulfonatophenylazo]-benzolsulfonat |
| Estonian eesti | kaalium, naatrium-2,4-diamino-3-[4-(2-sulfonatoetoksüsulfonüül)fenüülaso]-5-[4-(2-sulfonatoetoksüsulfonüül)-2-sulfonatofenüülaso]benseensulfonaat |
| Greek ελληνικά | 2,4-διαμινο-3-[4-(2-σουλφονατοαιθοξυσουλφονυλο)φαινυλαζω]-5-[4-(2-σουλφονατοαιθοξυσουλφονυλο)-2-σουλφονατοφαινυλαζω]-βενζολοσουλφονικό καλιονάτριο |
| English English | potassium, sodium 2,4-diamino-3-[4-(2-sulfonatoethoxysulfonyl)phenylazo]-5-[4-(2-sulfonatoethoxysulfonyl)-2-sulfonatophenylazo]-benzenesulfonate |
| French français | 2,4-diamino-3-[4-(2-sulfonatoéthoxysulfonyl)phénylazo]-5-[4-(2-sulfonatoéthoxysulfonyl)-2-sulfonatophénylazo]-benzènesulfonate de potassium et de sodium |
| Croatian hrvatski | kalijev natrijev 2,4-diamino-3-[4-(2-sulfonatoetoksisulfonil)fenilazo]-5-[4-(2-sulfonatoetoksisulfonil)-2-sulfonatofenilazo]benzensulfonat |
| Italian italiano | 2,4-diammino-3-[4-(2-solfonatoetossisolfonil)fenilazo]-5-[4-(2-solfonatoetossisolfonil)-2-solfonatofenilazo]-benzensolfonato di potassio e sodio |
| Latvian latviešu | kālija, nātrija 2,4-diamino-3-[4-(2-sulfonatoetoksisulfonil)fenilazo]-5-[4-(2-sulfonatoetoksisulfonil)-2-sulfonatofenilazo]benzolsulfonāts |
| Lithuanian lietuvių | kalio-natrio 2,4-diamino-3-[4-(2-sulfonatoetoksi sulfonil)fenilazo]-5-[4-(2-sulfonatoetoksisulfonil)-2-sulfonatofenilazo]benzensulfonatas |
| Hungarian magyar | kálium, nátrium-2,4-diamino-3-[4-(2-szulfonátoetoxiszulfonil)fenilazo]-5-[4-(2-szulfonátoetoxiszulfonil)-2-szulfonátofenilazo]benzolszulfonát |
| Maltese Malti | 2,4-diammino-3-[4-(2-sulfonatoetossisulfonil)fenilażo]-5-[4-(2-sulfonatoetossisulfonil)-2-sulfonatofenylażo]-benzensulfonat tas-sodju tal-potassju |
| Dutch Nederlands | kalium, natrium-2,4-diamino-3-[4-(2-sulfonatoëthoxysulfonyl)fenylazo]-5-[4-(2-sulfonatoëthoxysulfonyl)-2-sulfonatofenylazo]-benzeensulfonaat |
| Polish polski | 2,4-diamino-3-[4-(2-sulfonianoetoksysulfonylo)fenyloazo]-5-[4-(2-sulfonianoetoksysulfonylo)-2-sulfonianofenyloazo]benzenosulfonian potasu sodu |
| Portuguese português | 2,4-diamino-3-[4-(2-sulfonatoetoxissulfonil)fenilazo]-5-[4-(2-sulfonatoetoxissulfonil)-2-sulfonatofenilazo]benzenossulfonato de potássio/sódio |
| Romanian română | 2,4-diamino-3-[4-(2-sulfonatoetoxisulfonil)fenilazo]-5-[4-(2-sulfonatoetoxisulfonil)-2-sulfonato-fenilazo]benzensulfonat de potasiu/sodiu |
| Slovak slovenčina | draselno-sodná soľ kyseliny 2,4-diamino-3- {4-[(2-sulfoetoxy)sulfonyl]fenyldiazenyl}- 5-{4-[(2-sulfoetoxy)sulfonyl)]-2- sulfofenyldiazenyl}benzénsulfónovej |
| Slovenian slovenščina | kalijev, natrijev 2,4-diamino-3-[4-(2-sulfonatoetoksisulfonil)fenilazo]-5-[4-(2-sulfonatoetoksisulfonil)-2-sulfonatofenilazo]benzensulfonat |
| Finnish suomi | kaliumnatrium-2,4-diamino-3-[4-(2-sulfonaattoetoksisulfonyyli)fenyyliatso]-5-[4-(2-sulfonaattoetoksisulfonyyli)-2-sulfonaattofenyyliatso]bentseenisulfonaatti |
| Swedish svenska | kalium-, natrium-2,4-diamino-3-[4-(2-sulfonatoetoxisulfonyl)fenylazo]-5-[4-(2-sulfonatoetoxisulfonyl)-2-sulfonatofenylazo]-bensensulfonat |
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
Potassium,sodium 2,4-diamino-3… GHS label elements
Everything CLP Annex VI fixes for Potassium,sodium…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Potassium,sodium 2,4-diamino-3…
- Causes serious eye damage.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF IN EYES:
- Immediately call a POISON CENTER/doctor/…
- 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 Potassium,sodium… in the GHS label constructor →
07 · Transport
Potassium,sodium 2,4-diamino-3… 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.
Potassium,sodium 2,4-diamino-3… under UN 2257 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| POTASSIUM | 4.3 | W2 | I | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 4.3 is “Substances which, in contact with water, emit flammable gases” (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) |
|---|---|---|---|
| Potassium | 4.3 | I | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 4.3 is “Dangerous when wet material” (49 CFR 173.2).
08 · Questions
Potassium,sodium 2,4-diamino-3… — frequently asked questions
What is the CAS number of Potassium,sodium 2,4-diamino-3…?
The CAS number of Potassium,sodium 2,4-diamino-3… is 187026-95-5. Its EC number is 422-980-2.
What is the chemical formula of Potassium,sodium 2,4-diamino-3…?
The molecular formula of Potassium,sodium 2,4-diamino-3… is C22H20K2N6Na2O18S6 and its molecular weight is 973 g/mol.
What does a Potassium,sodium 2,4-diamino-3… label have to show?
Under CLP Annex VI the label for Potassium,sodium 2,4-diamino-3… carries the pictogram Corrosion and the signal word is Danger.
Is Potassium,sodium 2,4-diamino-3… flammable?
CLP Annex VI assigns Potassium,sodium 2,4-diamino-3… 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 Potassium,sodium 2,4-diamino-3… a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Potassium,sodium 2,4-diamino-3…. 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 Potassium,sodium…
Keep going: substances starting with P, or search the whole database by name, CAS number, pictogram or signal word.