Substance profile
4,4'-(4-iminocyclohexa-2,5-dienylidenemethylene)dianiline hydrochloride
4,4'-(4-iminocyclohexa-2,5-dienylidenemethylene)dianiline hydrochloride is colorless to red crystals.
01 · Identification
What 4,4'-(4-iminocyclohexa-2,5-die… is
4,4'-(4-iminocyclohexa-2,5-dienylidenemethylene)dianiline hydrochloride is colorless to red crystals. Its molecular formula is C19H18ClN3 and its molecular weight is 323.8 g/mol. It melts at 269 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
02 · Identifiers
4,4'-(4-iminocyclohexa-2,5-die… identifiers and molecular data
4,4'-(4-iminocyclohexa-2,5-die… CAS number and EC number
4,4'-(4-iminocyclohexa-2,5-die… molecular formula and molecular weight
Other names for 4,4'-(4-iminocyclohexa-2,5-die…
- C.I. Basic Red 9
03 · GHS classification
4,4'-(4-iminocyclohexa-2,5-die… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
4,4'-(4-iminocyclohexa-2,5-die… pictograms and signal word
4,4'-(4-iminocyclohexa-2,5-die… hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Carcinogenicity GHS chapter 3.6 | Category 1A or 1B | H350 | 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.
4,4'-(4-iminocyclohexa-2,5-die… hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
This page lists only the codes assigned to 4,4'-(4-iminocyclohexa-2,5…. 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 4,4'-(4-iminocyclohexa-2,5…
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 4,4'-(4-iminocyclohexa… 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
4,4'-(4-iminocyclohexa-2,5-die… precautionary statements
CLP Annex VI assigns 4 precautionary statements to 4,4'-(4-iminocyclohexa-2,5…. 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
4,4'-(4-iminocyclohexa-2,5-die… 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 | 4,4′-(4-иминоциклохекса-2,5-диенилиденметилен)дианилинхидрохлорид C.I. основно червено 9 |
| Spanish español | Clorhidrato de 4,4'-(4-iminociclohexa-2,5-dienilidenmetilen)dianilina C.I. Basic Red 9 |
| Czech čeština | {4-[bis(4-aminofenyl)methyliden]cyklohexa-2,5-dien-1-yliden}amonium-chlorid C.I. Basic Red 9 |
| Danish dansk | 4,4'-(4-iminocyclohexa-2,5-dienylidenmethylen)dianilinhydrochlorid C.I. Basic Red 9 |
| German Deutsch | 4,4'-(4-Iminocyclohexa-2,5- dienylidenmethylen)dianilinhydrochlorid C.I. Basic Red 9 |
| Estonian eesti | 4,4′-(4-iminotsükloheksa-2,5-dienülideenmetüleen)dianiliinvesinikkloriid C.I. Basic Red 9 |
| Greek ελληνικά | υδροχλωρική 4,4′-(4-ιμινοκυκλοεξα-2,5-διενυλιδενομεθυλενο)διανιλίνη C.I. Basic Red 9 |
| English English | 4,4'-(4-iminocyclohexa-2,5-dienylidenemethylene)dianiline hydrochloride C.I. Basic Red 9 |
| French français | chlorhydrate de 4,4'-(4-iminocyclohexa-2,5-diénylidèneméthylène)dianiline C.I. Basic Red 9 |
| Croatian hrvatski | 4,4'-(4-iminocikloheksa-2,5-dienilidenmetilen)dianilin hidroklorid C.I. Osnovna crvena 9 |
| Italian italiano | 4,4'-(4-imminocicloesa-2,5-dienilidenemetilen)dianilina, cloridrato C.I. Basic Red 9 |
| Latvian latviešu | 4,4′-(4-iminocikloheksa-2,5-dienilidēnmetilēn)dianilinohidrohlorīds C.I. bāzes sarkanā krāsviela 9 |
| Lithuanian lietuvių | 4,4'-(4-iminocikloheksa-2,5-dienilidenmetilen)dianilino vandenilio chloridas C.I. Bazinis Raudonasis 9 |
| Hungarian magyar | 4,4’-(4-iminociklohexa-2,5-dienilidénmetilén)dianilin-hidroklorid C.I. Basic Red 9 |
| Maltese Malti | idroklorur ta’ 4,4'-(4-iminoċikloeża-2,5-dienilidenmetilen)dianilina C.I. Aħmar Bażiku 9 |
| Dutch Nederlands | 4,4'-(4-iminocyclohexa-2,5-diënylideenmethyleen)dianilinehydrochloride C.I. Basic Red 9 |
| Polish polski | chlorowodorek 4,4'-(4-iminocykloheksa-2,5-dienylidenometyleno)dianiliny C.I. Basic Red 9czerwień zasadowa 9 |
| Portuguese português | 4,4'-(4-iminociclo-hexa-2,5-dienilidenometileno)dianilina, cloridrato vermelho básico do Colour Index |
| Romanian română | clorhidrat de 4,4'-(4-imino-ciclohexa-2,5-dieniliden-metilen)dianilină C.I. Roșu Bazic 9 |
| Slovak slovenčina | 4-[bis(4-aminofenyl)metylidén]cyklohexa-2,5-diénimínium-chlorid C.I. zásaditá červená 9 |
| Slovenian slovenščina | 4,4'-(4-iminocikloheksa-2,5-dienilidenmetilen)dianilin hidroklorid C.I. Basic Red 9 |
| Finnish suomi | 4,4'-(4-iminosykloheksa-2,5-dienylideenimetyyleni)dianiliinihydrokloridi C.I. Basic Red 9 |
| Swedish svenska | 4,4'-(4-iminocyklohexa-2,5-dienylidenmetylen)dianilinhydroklorid C.I. Basic Red 9 |
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
4,4'-(4-iminocyclohexa-2,5-die… GHS label elements
Everything CLP Annex VI fixes for 4,4'-(4-iminocyclohexa-2,5…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
4,4'-(4-iminocyclohexa-2,5-die…
- May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Obtain special instructions before use.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF exposed or concerned:
- Get medical advice/attention.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open 4,4'-(4-iminocyclohexa-2,5… in the GHS label constructor →
07 · Health hazards
4,4'-(4-iminocyclohexa-2,5-die… health hazards and exposure limits
4,4'-(4-iminocyclohexa-2,5-die… hazard summary
A skin, eye, and respiratory tract irritant; [MSDSonline] See Magenta production.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
4,4'-(4-iminocyclohexa-2,5-die… carcinogenicity classification
Under the conditions of these 2-year feed studies, there was clear evidence of carcinogenicity of C.I. Basic Red 9monohydrochloride for male and female F344/N rats and for male and female B6C3F1 mice. In male rats, C.I. Basic Red 9 monohydrochloride caused squamous cell carcinomas, trichoepitheliomas and sebaceous adenomas of the skin,subcutaneous fibromas, thyroid gland follicular cell adenomas and follicular cell carcinomas, Zymbal gland carcinomas, and hepatocellular carcinomas. In female rats, C.I. Basic Red 9 monohydrochloride caused subcutaneous fibromas, thyroid gland follicular cell adenomas or carcinomas(combined), and Zymbal gland carcinomas. In male mice, C.I. Basic Red 9monohydrochloride caused hepatocellular carcinomas. In female mice, C.I.Basic Red 9 monohydrochloride caused hepatocellular carcinomas and adrenal gland pheochromocytomas or malignant pheochromocytomas (combined). Exposure to C.I.Basic Red 9 monohydrochloride also may have been related to increased incidences of mammary gland tumors in female rats and hematopoietic system tumors in female mice.
Source: US National Toxicology Program · TR-285: Toxicology and Carcinogenesis Studies of C.I. Basic Red 9 Monohydrochloride (Pararosaniline) (CASRN 569-61-9) in F344/N Rats and B6C3F1 Mice (Feed Studies) (1986 )
Classification of carcinogenicity: 1) evidence in humans: inadequate; 2) evidence in animals: sufficient. Overall summary evaluation of carcinogenic risk to humans is Group 2B: The agent is possibly carcinogenic to humans.
Source: Hazardous Substances Data Bank (HSDB)
C.I. Basic Red 9 Monohydrochloride: reasonably anticipated to be a human carcinogen.
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
08 · Physical and chemical properties
4,4'-(4-iminocyclohexa-2,5-die… 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.
4,4'-(4-iminocyclohexa-2,5-die… melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 269 °C (516.2 °F) | range, midpoint shown | HSDB |
| 268.89 °C (516 °F) | range, midpoint shown | CAMEO |
4,4'-(4-iminocyclohexa-2,5-die… solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | SOL IN ALCOHOL; VERY SLIGHTLY SOL IN WATER & ETHER | HSDB | |
| Soluble in water (2-3 mg/ml), ethanol (2-25 mg/ml) ethylene glycol methyl ether (50-70 mg/ml) and methanol | HSDB | ||
| less than 0.1 mg/mL at 68 °F (NTP, 1992) | at 20 °C | CAMEO |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
4,4'-(4-iminocyclohexa-2,5… fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
4,4'-(4-iminocyclohexa-2,5-die… fire potential
COMBUSTIBLE.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
4,4'-(4-iminocyclohexa-2,5-die… storage and handling
4,4'-(4-iminocyclohexa-2,5-die… storage conditions
PRECAUTIONS FOR "CARCINOGENS": Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for ... expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ...) that bears appropriate label. An inventory ... should be kept, showing quantity of carcinogen & date it was acquired ... Facilities for dispensing ... should be contiguous to storage area. /Chemical Carcinogens/
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check 4,4'-(4-iminocyclohexa-2… in the storage compatibility matrix →
11 · Questions
4,4'-(4-iminocyclohexa-2,5-die… — frequently asked questions
What is the CAS number of 4,4'-(4-iminocyclohexa-2,5-die…?
The CAS number of 4,4'-(4-iminocyclohexa-2,5-die… is 569-61-9. Its EC number is 209-321-2.
What is the chemical formula of 4,4'-(4-iminocyclohexa-2,5-die…?
The molecular formula of 4,4'-(4-iminocyclohexa-2,5-die… is C19H18ClN3 and its molecular weight is 323.8 g/mol.
What does a 4,4'-(4-iminocyclohexa-2,5-die… label have to show?
Under CLP Annex VI the label for 4,4'-(4-iminocyclohexa-2,5-die… carries the pictogram Health hazard and the signal word is Danger.
Is 4,4'-(4-iminocyclohexa-2,5-die… flammable?
CLP Annex VI assigns 4,4'-(4-iminocyclohexa-2,5-die… 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 4,4'-(4-iminocyclohexa-2,5-die… a carcinogen?
Yes. CLP Annex VI classifies 4,4'-(4-iminocyclohexa-2,5-die… as a category 1A or 1B carcinogen and assigns it H350: may cause cancer. IARC places it in Group 2B: possibly carcinogenic to humans.
What is the melting point of 4,4'-(4-iminocyclohexa-2,5-die…?
The melting point reported for 4,4'-(4-iminocyclohexa-2,5-die… is 269 °C (516.2 °F), range, midpoint shown (HSDB).
How should 4,4'-(4-iminocyclohexa-2,5-die… be stored?
PRECAUTIONS FOR "CARCINOGENS": Storage site should be as close as practical to lab in which carcinogens are to be used, so that only small quantities required for ... expt need to be carried. Carcinogens should be kept in only one section of cupboard, an explosion-proof refrigerator or freezer (depending on chemicophysical properties ...) that bears appropriate label. An inventory ... should be kept, showing quantity of carcinogen & date it was acquired ... Facilities for dispensing ... should be contiguous to storage area. /Chemical Carcinogens/ (Hazardous Substances Data Bank (HSDB))
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