Substance profile
1,5-Diaminonaphthalene
1,5-Diaminonaphthalene is colorless prisms.
01 · Identification
What 1,5-Diaminonaphthalene is
1,5-Diaminonaphthalene is colorless prisms. It melts at 190 °C, is soluble in water.
Under the GHS it carries the signal word Warning.
02 · Identifiers
1,5-Diaminonaphthalene identifiers and molecular data
1,5-Diaminonaphthalene CAS number and EC number
Other names for 1,5-Diaminonaphthalene
- 1,5-naphthylenediamine
03 · GHS classification
1,5-Diaminonaphthalene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
1,5-Diaminonaphthalene pictograms and signal word
1,5-Diaminonaphthalene hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Carcinogenicity GHS chapter 3.6 | Category 2 | H351 | GHS08 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | GHS09 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 1 | H410 | GHS09 |
1,5-Diaminonaphthalene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to 1,5-Diaminonaphthalene. 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 1,5-Diaminonaphthalene
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 1,5-Diaminonaphthalene 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
1,5-Diaminonaphthalene precautionary statements
CLP Annex VI assigns 7 precautionary statements to 1,5-Diaminonaphthalene. 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
1,5-Diaminonaphthalene 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 | 1,5-нафтилендиамин |
| Spanish español | 1,5-Naftilendiamina |
| Czech čeština | naftalen-1,5-diamin |
| Danish dansk | 1,5-naphthylendiamin |
| German Deutsch | 1,5-Naphthylendiamin |
| Estonian eesti | 1,5-naftüleendiamiin |
| Greek ελληνικά | 1,5-ναφθυλενοδιαμίνη |
| English English | 1,5-naphthylenediamine |
| French français | 1,5-naphtylènediamine |
| Croatian hrvatski | 1,5-naftilendiamin |
| Italian italiano | 1,5-naftilenediamina |
| Latvian latviešu | 1,5-naftilēndiamīns |
| Lithuanian lietuvių | 1,5-naftilendiaminas |
| Hungarian magyar | 1,5-naftalindiamin |
| Maltese Malti | 1,5-naftilendiammina |
| Dutch Nederlands | 1,5-naftyleendiamine |
| Polish polski | naftaleno-1,5-diamina |
| Portuguese português | 1,5-naftilenodiamina |
| Romanian română | 1,5-naftilen-diamină |
| Slovak slovenčina | naftalén-1,5-diamín |
| Slovenian slovenščina | 1,5-naftilendiamin |
| Finnish suomi | 1,5-naftyleenidiamiini |
| Swedish svenska | 1,5-naftylendiamin |
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
1,5-Diaminonaphthalene GHS label elements
Everything CLP Annex VI fixes for 1,5-Diaminonaphthalene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
1,5-Diaminonaphthalene
- Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Obtain special instructions before use.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF exposed or concerned:
- Get medical advice/attention.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open 1,5-Diaminonaphthalene in the GHS label constructor →
07 · Health hazards
1,5-Diaminonaphthalene health hazards and exposure limits
1,5-Diaminonaphthalene hazard summary
Danger of cutaneous absorption; Danger of skin sensitization; [MAK] May cause skin sensitization; [ICSC] An irritant; [MSDSonline] See beta-Naphthylamine and alpha-Naphthylamine.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
1,5-Diaminonaphthalene carcinogenicity classification
Under the conditions of this bioassay, 1,5-naphthalenediamine was carcinogenic in female Fischer 344 rats, causing clitoral and uterine neoplasms. 1,5-Naphthalenediamine was also carcinogenic for B6C3F1 mice, producing thyroid neoplasms in males and neoplasms of the thyroid, liver, and lung in females. Insufficient evidence was provided for the carcinogenicity of the compound in male Fischer 344 rats.
Source: US National Toxicology Program · TR-143: Bioassay of 1,5-Naphthalenediamine for Possible Carcinogenicity (CASRN 2243-62-1) (1978 )
No data are available in humans. Limited evidence of carcinogenicity in animals. OVERALL EVALUATION: Group 3: The agent is not classifiable as to its carcinogenicity to humans.
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
1,5-Diaminonaphthalene 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.
1,5-Diaminonaphthalene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | Boiling point: sublimes | sublimes | HSDB |
| Sublimes (NTP, 1992) | sublimes | CAMEO | |
| sublimes | sublimes | ICSC |
1,5-Diaminonaphthalene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 190 °C (374 °F) | HSDB | |
| 187 °C (368.6 °F) | ICSC |
1,5-Diaminonaphthalene density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.4 g/cm³ | CAMEO | |
| 1.4 g/cm³ | at 25 °C | HSDB |
1,5-Diaminonaphthalene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in benzene and ethanol | HSDB | |
| ... It is soluble in alcohol, ether, and chloroform. | HSDB | ||
| In water, 380 mg/l @ 25 °C | at 25 °C | HSDB |
1,5-Diaminonaphthalene vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1.725e-8 mmHg | at 20 °C | ICSC |
| 0.0000293 mmHg | Haz-Map |
1,5-Diaminonaphthalene flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 226 °C (438.8 °F) | ICSC |
1,5-Diaminonaphthalene autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 580 °C (1076 °F) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
1,5-Diaminonaphthalene storage and handling
1,5-Diaminonaphthalene safe storage
Well closed.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
1,5-Diaminonaphthalene reactivity
1,5-NAPHTHALENEDIAMINE 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 1,5-Diaminonaphthalene in the storage compatibility matrix →
10 · Questions
1,5-Diaminonaphthalene — frequently asked questions
What is the CAS number of 1,5-Diaminonaphthalene?
The CAS number of 1,5-Diaminonaphthalene is 2243-62-1. Its EC number is 218-817-8.
What does a 1,5-Diaminonaphthalene label have to show?
Under CLP Annex VI the label for 1,5-Diaminonaphthalene carries the pictograms Health hazard and Environment and the signal word is Warning.
Is 1,5-Diaminonaphthalene flammable?
CLP Annex VI assigns 1,5-Diaminonaphthalene 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 226 °C (438.8 °F) (ICSC).
Is 1,5-Diaminonaphthalene a carcinogen?
CLP Annex VI assigns 1,5-Diaminonaphthalene H351 — suspected of causing cancer. That is category 2: the evidence points that way but is not conclusive. IARC places it in Group 3: not classifiable as to its carcinogenicity to humans.
What is the boiling point of 1,5-Diaminonaphthalene?
The boiling point reported for 1,5-Diaminonaphthalene is Boiling point: sublimes, sublimes (HSDB).
What is the melting point of 1,5-Diaminonaphthalene?
The melting point reported for 1,5-Diaminonaphthalene is 190 °C (374 °F) (HSDB).
Nearby
Substances next to 1,5-Diaminonaphthalene
Keep going: substances starting with 0–9, or search the whole database by name, CAS number, pictogram or signal word.