Substance profile
N,N'-Diphenyl-P-Phenylenediamine
N,N'-Diphenyl-P-Phenylenediamine is colorless leaflets from alcohol; commercial grades are greenish-brown.
01 · Identification
What N,N'-Diphenyl-P-Phenylenediami… is
N,N'-Diphenyl-P-Phenylenediamine is colorless leaflets from alcohol; commercial grades are greenish-brown. Its molecular formula is C18H16N2 and its molecular weight is 260.3 g/mol. It melts at 151 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
N,N'-Diphenyl-P-Phenylenediami… identifiers and molecular data
N,N'-Diphenyl-P-Phenylenediami… CAS number and EC number
N,N'-Diphenyl-P-Phenylenediami… molecular formula and molecular weight
Other names for N,N'-Diphenyl-P-Phenylenediami…
- N,N'-diphenyl-1,4-benzenediamine
03 · GHS classification
N,N'-Diphenyl-P-Phenylenediami… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
N,N'-Diphenyl-P-Phenylenediami… pictograms and signal word
N,N'-Diphenyl-P-Phenylenediami… 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.
N,N'-Diphenyl-P-Phenylenediami… 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 N,N'-Diphenyl-P-Phenylened…. 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 N,N'-Diphenyl-P-Phenylened…
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 N,N'-Diphenyl-P-Phenyl… 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
N,N'-Diphenyl-P-Phenylenediami… precautionary statements
CLP Annex VI assigns 7 precautionary statements to N,N'-Diphenyl-P-Phenylened…. 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
N,N'-Diphenyl-P-Phenylenediami… 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 | N, N′ -дифенил- p -фенилендиамин N, N′ -дифенил-1,4-бензендиамин |
| Spanish español | N, N' -Difenil- p -fenilendiamina N, N' -difenil-1,4-bencenodiamina |
| Czech čeština | N, N' -difenyl- p -fenylendiamin N, N' -difenyl-1,4-fenylendiamin |
| Danish dansk | N, N' -diphenyl- p -phenylendiamin N, N' -diphenyl-1,4-benzendiamin |
| German Deutsch | N, N' -Diphenyl- p -phenylendiamin N, N' -Diphenyl-1,4-benzoldiamin |
| Estonian eesti | N , N '-difenüül- p -fenüleendiamiin N , N '-difenüül-1,4-benseendiamiin |
| Greek ελληνικά | N, N′ -διφαινυλο- p -φαινυλενοδιαμίνη N, N′ -διφαινυλο-1,4-βενζολοδιαμίνη |
| English English | N, N' -diphenyl- p -phenylenediamine N, N' -diphenyl-1,4-benzenediamine |
| French français | N, N' -diphényl- p -phénylènediamine N, N' -diphényl-1,4-benzènediamine |
| Croatian hrvatski | N , N '-difenil- p -fenilendiamin N , N '-difenil-1,4-benzendiamin |
| Italian italiano | N , N '-difenil- p -fenilendiamina N, N' -difenil-1,4-benzendiamina |
| Latvian latviešu | N , N '-difenil- p -fenilēndiamīns N , N '-difenil-1,4-benzoldiamīns |
| Lithuanian lietuvių | N, N '-difenil- p -fenildiaminas N, N '-difenil-1,4-benzendiaminas |
| Hungarian magyar | N, N’ -difenil- p -feniléndiamin N, N’ -difenil-1,4-benzoldiamin |
| Maltese Malti | N, N' -difenil- p -fenilendiammina N, N' -difenil-1,4-benżendiammina |
| Dutch Nederlands | N , N '-difenyl- p -fenyleendiamine N, N' -difenyl-1,4-benzeendiamine |
| Polish polski | N, N'-difenylo- p -fenylenodiamina N, N'-difenylo-1,4-fenylenodiaminaN, N'-difenylobenzeno-1,4-diamina |
| Portuguese português | N , N '-difenil- p -fenilenodiamina N , N '-difenil-1,4-benzenodiamina |
| Romanian română | N, N' -difenil- p -fenilendiamină N, N' -difenil-1,4-benzendiamină |
| Slovak slovenčina | N, N '-difenyl-1,4-fenyléndiamín N, N '-difenylbenzén-1,4-diamín |
| Slovenian slovenščina | N, N' -difenil- p -fenilendiamin N, N' -difenil-1,4-benzendiamin |
| Finnish suomi | N, N' -difenyyli- p -fenyleenidiamiini N, N' -difenyyli-1,4-bentseenidiamiini |
| Swedish svenska | N, N' -difenyl- p -fenylendiamin N, N' -difenyl-1,4-bensendiamin |
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
N,N'-Diphenyl-P-Phenylenediami… GHS label elements
Everything CLP Annex VI fixes for N,N'-Diphenyl-P-Phenylened…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
N,N'-Diphenyl-P-Phenylenediami…
- 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 N,N'-Diphenyl-P-Phenylened… in the GHS label constructor →
07 · Health hazards
N,N'-Diphenyl-P-Phenylenediami… health hazards and exposure limits
N,N'-Diphenyl-P-Phenylenediami… hazard summary
May cause skin sensitization; [ICSC] Danger of skin sensitization; [MAK] Food concentrations as low as 0.005% increase frequency of stillbirths in pregnant rats; Emergency treatment: Paraphenylenediamine; In sensitized individuals, paraphenylenediamine may cause allergic contact dermatitis following application as a hair dye and asthma following inhalation; Following ingestion, can cause angioneurotic edema, methemoglobinemia, acute tubular necrosis, and hepatotoxicity; An adult died after ingestion of 3 grams of p-phenylenediamine; Another adult who ingested 1800 mg developed angioneurotic edema and acute renal failure; [HSDB] May cause skin sensitization; [eChemPortal: ESIS] A mild eye irritant; Causes changes in liver weight, renal tubules, and clotting factors in repeated feeding studies of rats; [RTECS] See p-Phenylenediamine.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
N,N'-Diphenyl-P-Phenylenediami… 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.
N,N'-Diphenyl-P-Phenylenediami… boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 222.5 °C (432.5 °F) | range, midpoint shown, at 0.5 mmHg (reduced pressure) | HSDB |
N,N'-Diphenyl-P-Phenylenediami… melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 150.5 °C (302.9 °F) | range, midpoint shown | HSDB |
| 148.5 °C (299.3 °F) | range, midpoint shown | HSDB | |
| 148.61 °C (299.5 °F) | range, midpoint shown | CAMEO |
N,N'-Diphenyl-P-Phenylenediami… density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.2 g/cm³ | HSDB | |
| 1.21 g/cm³ | CAMEO |
N,N'-Diphenyl-P-Phenylenediami… solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Solubility in water: none | ICSC | |
| less than 1 mg/mL at 68 °F (NTP, 1992) | at 20 °C | CAMEO |
N,N'-Diphenyl-P-Phenylenediami… vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 6.35e-9 mmHg | at 25 °C | HSDB |
| 1e-8 mmHg | Haz-Map |
N,N'-Diphenyl-P-Phenylenediami… flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 204.44 °C (400 °F) | CAMEO | |
| 232 °C (449.6 °F) | ICSC |
N,N'-Diphenyl-P-Phenylenediami… vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 9 (air = 1) | HSDB |
N,N'-Diphenyl-P-Phenylenediami… critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 632.85 °C (1171.1 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
N,N'-Diphenyl-P-Phenylened… 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.
N,N'-Diphenyl-P-Phenylenediami… fire potential
COMBUSTIBLE.
Source: Hazardous Substances Data Bank (HSDB)
Solubility
Sol in monochlorobenzene, benzene, DMF, ether, chloroform, acetone, ethyl acetate, isopropyl acetate, glacial acetic acid. Slightly sol in alcohol. Almost insol in petr ether, water.
Source: HSDB
10 · Handling and storage
N,N'-Diphenyl-P-Phenylenediami… storage and handling
N,N'-Diphenyl-P-Phenylenediami… safe storage
Separated from strong oxidants. Keep in a well-ventilated room.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
N,N'-Diphenyl-P-Phenylenediami… storage conditions
...MATERIALS WHICH ARE TOXIC AS STORED OR WHICH CAN DECOMP INTO TOXIC COMPONENTS DUE TO CONTACT WITH HEAT, MOISTURE, ACID, OR ACID FUMES, SHOULD BE STORED IN COOL, WELL-VENTILATED PLACE, OUT OF DIRECT RAYS OF SUN, AWAY FROM AREAS OF HIGH FIRE HAZARD & SHOULD BE PERIODICALLY INSPECTED & MONITORED.
Source: Hazardous Substances Data Bank (HSDB)
N,N'-Diphenyl-P-Phenylenediami… reactivity
N,N'-DIPHENYL-P-PHENYLENEDIAMINE may react with oxidizing materials (NTP, 1992). Neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check N,N'-Diphenyl-P-Phenylene… in the storage compatibility matrix →
11 · Questions
N,N'-Diphenyl-P-Phenylenediami… — frequently asked questions
What is the CAS number of N,N'-Diphenyl-P-Phenylenediami…?
The CAS number of N,N'-Diphenyl-P-Phenylenediami… is 74-31-7. Its EC number is 200-806-4.
What is the chemical formula of N,N'-Diphenyl-P-Phenylenediami…?
The molecular formula of N,N'-Diphenyl-P-Phenylenediami… is C18H16N2 and its molecular weight is 260.3 g/mol.
What does a N,N'-Diphenyl-P-Phenylenediami… label have to show?
Under CLP Annex VI the label for N,N'-Diphenyl-P-Phenylenediami… carries the pictogram Exclamation mark and the signal word is Warning.
Is N,N'-Diphenyl-P-Phenylenediami… flammable?
CLP Annex VI assigns N,N'-Diphenyl-P-Phenylenediami… 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. The flash point reported for it is 204.44 °C (400 °F) (CAMEO).
Is N,N'-Diphenyl-P-Phenylenediami… a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for N,N'-Diphenyl-P-Phenylenediami…. 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.
What is the boiling point of N,N'-Diphenyl-P-Phenylenediami…?
The boiling point reported for N,N'-Diphenyl-P-Phenylenediami… is 222.5 °C (432.5 °F), range, midpoint shown, at 0.5 mmHg (reduced pressure) (HSDB).
What is the melting point of N,N'-Diphenyl-P-Phenylenediami…?
The melting point reported for N,N'-Diphenyl-P-Phenylenediami… is 150.5 °C (302.9 °F), range, midpoint shown (HSDB).
How should N,N'-Diphenyl-P-Phenylenediami… be stored?
...MATERIALS WHICH ARE TOXIC AS STORED OR WHICH CAN DECOMP INTO TOXIC COMPONENTS DUE TO CONTACT WITH HEAT, MOISTURE, ACID, OR ACID FUMES, SHOULD BE STORED IN COOL, WELL-VENTILATED PLACE, OUT OF DIRECT RAYS OF SUN, AWAY FROM AREAS OF HIGH FIRE HAZARD & SHOULD BE PERIODICALLY INSPECTED & MONITORED. (Hazardous Substances Data Bank (HSDB))
Nearby
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