Substance profile
N-methyl-N-2,4,6-tetranitroaniline
N-methyl-N-2,4,6-tetranitroaniline is a colorless to yellow, crystalline solid and is odorless.
01 · Identification
What N-methyl-N-2,4,6-tetranitroani… is
N-methyl-N-2,4,6-tetranitroaniline is a colorless to yellow, crystalline solid and is odorless. Its molecular formula is C7H5N5O8 and its molecular weight is 287.14 g/mol. It boils at 187 °C, melts at 131 °C.
Under the GHS it carries the signal word Danger. It is classed as reactive agents - 3rd degree.
02 · Identifiers
N-methyl-N-2,4,6-tetranitroani… identifiers and molecular data
N-methyl-N-2,4,6-tetranitroani… CAS number and EC number
N-methyl-N-2,4,6-tetranitroani… molecular formula and molecular weight
Other names for N-methyl-N-2,4,6-tetranitroani…
- tetryl
03 · GHS classification
N-methyl-N-2,4,6-tetranitroani… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
N-methyl-N-2,4,6-tetranitroani… pictograms and signal word
N-methyl-N-2,4,6-tetranitroani… hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Explosives GHS chapter 2.1 | Category 1.1 | H201 | GHS01 |
| Acute toxicity - oral GHS chapter 3.1 | Category 3 | H301 | GHS06 |
| Acute toxicity - dermal GHS chapter 3.1 | Category 3 | H311 | GHS06 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 3 | H331 | GHS06 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 2 | H373 | GHS08 |
N-methyl-N-2,4,6-tetranitroani… hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H201 | Explosive; mass explosion hazard. |
| H331 | Toxic if inhaled. |
| H311 | Toxic in contact with skin. |
| H301 | Toxic if swallowed. |
| 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>. |
This page lists only the codes assigned to N-methyl-N-2,4,6-tetranitr…. 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-methyl-N-2,4,6-tetranitr…
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-methyl-N-2,4,6-tetra… 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-methyl-N-2,4,6-tetranitroani… precautionary statements
CLP Annex VI assigns 12 precautionary statements to N-methyl-N-2,4,6-tetranitr…. 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
N-methyl-N-2,4,6-tetranitroani… 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 -метил- N -2,4,6-тетранитроанилин тетрил |
| Spanish español | N -Metil- N -2,4,6-tetranitroanilina tetrilo |
| Czech čeština | N -methyl- N -2,4,6-tetranitroanilin tetryl |
| Danish dansk | N- methyl- N- 2,4,6-tetranitroanilin tetryl |
| German Deutsch | N -Methyl- N -2,4,6-tetranitroanilin Tetryl |
| Estonian eesti | N -metüül- N -2,4,6-tetranitroaniliin tetrüül |
| Greek ελληνικά | N -μεθυλο- Ν -2,4,6-τετρανιτροανιλίνη τετρύλη |
| English English | N -methyl- N -2,4,6-tetranitroaniline tetryl |
| French français | N -méthyl- N -2,4,6-tétranitroaniline tétryle |
| Croatian hrvatski | N -metil- N -2,4,6-tetranitroanilin tetril |
| Italian italiano | N -metil- N -2,4,6-tetranitroanilina |
| Latvian latviešu | N -metil- N -2,4,6-tetranitroanilīns tetrils |
| Lithuanian lietuvių | N -metil- N -2,4,6-tetranitroanilinas tetrilas |
| Hungarian magyar | N -metil- N -2,4,6-tetranitroanilin tetril |
| Maltese Malti | N -metil- N -2,4,6-tetranitroanilina tetril |
| Dutch Nederlands | N -methyl- N -2,4,6-tetranitroaniline tetryl |
| Polish polski | N-metylo-N-2,4,6-tetranitroanilina tetryl |
| Portuguese português | N -metil- N -2,4,6-tetranitroanilina tetril |
| Romanian română | N -metil- N -2,4,6-tetranitroanilină tetril |
| Slovak slovenčina | N -metyl- N ,2,4,6-tetranitroanilín tetryl |
| Slovenian slovenščina | N -metil- N -2,4,6-tetranitroanilin tetril |
| Finnish suomi | N -metyyli- N -2,4,6-tetranitroaniliini tetryyli |
| Swedish svenska | N -metyl- N -2,4,6-tetranitroanilin tetryl |
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-methyl-N-2,4,6-tetranitroani… GHS label elements
Everything CLP Annex VI fixes for N-methyl-N-2,4,6-tetranitr…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
N-methyl-N-2,4,6-tetranitroani…
- Explosive; mass explosion hazard.
- Toxic if inhaled.
- Toxic in contact with skin.
- Toxic if swallowed.
- 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>.
- Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Use only outdoors or in a well-ventilated area.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF ON SKIN:
- IF INHALED:
- Immediately call a POISON CENTER/doctor/…
- Get medical advice/attention if you feel unwell.
- Rinse mouth.
- Wash with plenty of water/…
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open N-methyl-N-2,4,6-tetranitr… in the GHS label constructor →
07 · Health hazards
N-methyl-N-2,4,6-tetranitroani… health hazards and exposure limits
N-methyl-N-2,4,6-tetranitroani… hazard summary
The chemical name for tetryl is 2,4,6-trinitrophenyl-n-methylnitramine. Some commonly used names are nitramine, tetralite, and tetril. Tetryl is an odorless, synthetic, yellow crystal-like solid that is not found naturally in the environment. Under certain conditions, tetryl can exist as dust in air. It dissolves slightly in water and in other liquids. Tetryl was used to make explosives, mostly during World Wars I and II. It is no longer manufactured or used in the United States. Stocks of tetryl are found in storage at military installations and are being destroyed by the Department of Defense (DOD).
Source: Agency for Toxic Substances and Disease Registry (ATSDR)
N-methyl-N-2,4,6-tetranitroani… occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 1.5 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| PEL | TWA 1.5 mg/m3 [skin] | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | TWA 1.5 mg/m3 [skin] | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 750 mg/m3 (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 750.0 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 750 mg/cu m | Hazardous Substances Data Bank (HSDB) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
N-methyl-N-2,4,6-tetranitroani… 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-methyl-N-2,4,6-tetranitroani… boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 187 °C (368.6 °F) | explodes | HSDB |
| 185 °C (365 °F) | range, midpoint shown | NIOSH | |
| 185 °C (365 °F) | range, midpoint shown, at 760 mmHg | CAMEO |
N-methyl-N-2,4,6-tetranitroani… melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 131.11 °C (268 °F) | NIOSH | |
| 130 °C (266 °F) | ICSC |
N-methyl-N-2,4,6-tetranitroani… density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.57 g/cm³ | HSDB |
N-methyl-N-2,4,6-tetranitroani… solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Sol in alc, ether, glacial acetic acid, benzene | HSDB | |
| 0.02% | NIOSH | ||
| In water, 74 mg/L @ 25 °C | at 25 °C | HSDB |
N-methyl-N-2,4,6-tetranitroani… vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1.2e-7 mmHg | at 25 °C | HSDB |
| 1 mmHg | below this value | NIOSH |
N-methyl-N-2,4,6-tetranitroani… flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 187 °C (368.6 °F) | ICSC | |
| Flash point: explodes in air at 187C | HSDB | ||
| Explodes | NIOSH |
N-methyl-N-2,4,6-tetranitroani… lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | Severe, when shocked or exposed to heat or flame. It is powerful explosive quite sensitive to percussion and more sensitive to shock and friction than TNT. | HSDB | |
| Impact sensitivity (minimum fall of a 2 kg weight to cause at least one explosion in ten trials): 26 cm | HSDB | ||
| Combustible Solid (Class A Explosive) | NIOSH |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
N-methyl-N-2,4,6-tetranitr… 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-methyl-N-2,4,6-tetranitroani… fire potential
Dangerous fire ... explosion risk
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
N-methyl-N-2,4,6-tetranitroani… storage and handling
N-methyl-N-2,4,6-tetranitroani… safe storage
Fireproof. Separated from strong oxidants. Keep in the dark. Keep in a separate building protected from shock.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
N-methyl-N-2,4,6-tetranitroani… storage conditions
Keep solution in the dark.
Source: Hazardous Substances Data Bank (HSDB)
N-methyl-N-2,4,6-tetranitroani… incompatible materials
Contact of tetryl with some oxidizable materials may cause fires & explosions.
Source: Hazardous Substances Data Bank (HSDB)
N-methyl-N-2,4,6-tetranitroani… reactivity
During the measurement of the shock sensitivity of a mixture containing hydrazine, a drop of the hydrazine mixture fell on a tetryl explosive. The tetryl immediately burst into flames (ASESB 105).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check N-methyl-N-2,4,6-tetranit… in the storage compatibility matrix →
11 · Questions
N-methyl-N-2,4,6-tetranitroani… — frequently asked questions
What is the CAS number of N-methyl-N-2,4,6-tetranitroani…?
The CAS number of N-methyl-N-2,4,6-tetranitroani… is 479-45-8. Its EC number is 207-531-9.
What is the chemical formula of N-methyl-N-2,4,6-tetranitroani…?
The molecular formula of N-methyl-N-2,4,6-tetranitroani… is C7H5N5O8 and its molecular weight is 287.14 g/mol.
What does a N-methyl-N-2,4,6-tetranitroani… label have to show?
Under CLP Annex VI the label for N-methyl-N-2,4,6-tetranitroani… carries the pictograms Exploding bomb, Skull and crossbones and Health hazard and the signal word is Danger.
Is N-methyl-N-2,4,6-tetranitroani… flammable?
CLP Annex VI assigns N-methyl-N-2,4,6-tetranitroani… 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 187 °C (368.6 °F) (ICSC).
Is N-methyl-N-2,4,6-tetranitroani… a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for N-methyl-N-2,4,6-tetranitroani…. 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 exposure limit for N-methyl-N-2,4,6-tetranitroani…?
The US occupational exposure limit reported for N-methyl-N-2,4,6-tetranitroani… is 1.5 [mg/m3] (Haz-Map, Information on Hazardous Chemicals and Occupational Diseases). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of N-methyl-N-2,4,6-tetranitroani…?
The boiling point reported for N-methyl-N-2,4,6-tetranitroani… is 187 °C (368.6 °F), explodes (HSDB).
What is the melting point of N-methyl-N-2,4,6-tetranitroani…?
The melting point reported for N-methyl-N-2,4,6-tetranitroani… is 131.11 °C (268 °F) (NIOSH).
How should N-methyl-N-2,4,6-tetranitroani… be stored?
Keep solution in the dark. (Hazardous Substances Data Bank (HSDB))
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