Substance profile
Metamitron
Metamitron: colourless-to-yellow crystals.
01 · Identification
What Metamitron is
Metamitron: colourless-to-yellow crystals. Its molecular formula is C10H10N4O and its molecular weight is 202.21 g/mol. It melts at 167 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Metamitron identifiers and molecular data
Metamitron CAS number and EC number
Metamitron molecular formula and molecular weight
Other names for Metamitron
- metamitron (ISO)
- 4-amino-3-methyl-6-phenyl-1,2,4-triazin-5-one
03 · GHS classification
Metamitron hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Metamitron pictograms and signal word
Metamitron hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | GHS09 |
Metamitron hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H302 | Harmful if swallowed. |
| H400 | Very toxic to aquatic life. |
This page lists only the codes assigned to Metamitron. 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 Metamitron
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 Metamitron 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
Metamitron precautionary statements
CLP Annex VI assigns 7 precautionary statements to Metamitron. 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
Metamitron 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 | метамитрон (ISO) 4-амино-3-метил-6-фенил-1,2,4-триазин-5-он |
| Spanish español | Metamitrón (ISO) 4-amino-3-metil-6-fenil-1,2,4-triazin-5-ona |
| Czech čeština | metamitron (ISO) 4-amino-6-fenyl-3-methyl-1,2,4-triazin-5(4 H )-on |
| Danish dansk | metamitron (ISO) 4-amino-3-methyl-6-phenyl-1,2,4-triazin-5-on |
| German Deutsch | Metamitron (ISO) 4-Amino-3-methyl-6-phenyl-1,2,4-triazin-5-on |
| Estonian eesti | metamitroon (ISO) 4-amino-3-metüül-6-fenüül-1,2,4-triasiin-5-oon |
| Greek ελληνικά | metamitron (μεταμιτρόνη) (ISO) 4-αμινο-3-μεθυλο-6-φαινυλο-1,2,4-τριαζιν-5-όνη |
| English English | metamitron (ISO) 4-amino-3-methyl-6-phenyl-1,2,4-triazin-5-one |
| French français | métamitrone (ISO) 4-amino-3-méthyl-6-phényl-1,2,4-triazin-5-one |
| Croatian hrvatski | metamitron (ISO) 4-amino-3-metil-6-fenil-1,2,4-triazin-5-on |
| Italian italiano | metamitron (ISO) 4-amino-3-metil-6-fenil-1,2,4-triazin-5-one |
| Latvian latviešu | metamitrons (ISO) 4-amino-3-metil-6-fenil-1,2,4-triazīn-5-ons |
| Lithuanian lietuvių | metamitronas (ISO) 4-amino-6-fenil-3-metil-1,2,4-triazin-5-onas |
| Hungarian magyar | metamitron (ISO) 4-amino-3-metil-6-fenil-1,2,4-triazin-5-on |
| Maltese Malti | metamitron (ISO) 4-ammino-3-metil-6-fenil-1,2,4-triażin-5-on |
| Dutch Nederlands | metamitron (ISO) 4-amino-3-methyl-6-fenyl-1,2,4-triazine-5-on |
| Polish polski | metamitron (ISO) 4-amino-6-fenylo-3-metylo-1,2,4-triazin-5-on |
| Portuguese português | metamitrão (ISO) 4-amino-3-metil-6-fenil- 1,2,4-triazin-5-ona |
| Romanian română | metamitron (ISO) 4-amino-3-metil-6-fenil-1,2,4-triazin-5-onă |
| Slovak slovenčina | metamitrón (ISO) 4-amino-6-fenyl-3-metyl-1,2,4-triazín-5-ón |
| Slovenian slovenščina | metamitron (ISO) 4-amino-3-metil-6-fenil-1,2,4-triazin-5-on |
| Finnish suomi | metamitroni (ISO) 4-amino-3-metyyli-6-fenyyli- 1,2,4-triatsin-5-oni |
| Swedish svenska | metamitron (ISO) 4-amino-3-metyl-6-fenyl-1,2,4-triazin-5-on |
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
Metamitron GHS label elements
Everything CLP Annex VI fixes for Metamitron, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Metamitron
- Harmful if swallowed.
- Very toxic to aquatic life.
- Do not eat, drink or smoke when using this product.
- Avoid release to the environment.
- IF SWALLOWED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Metamitron in the GHS label constructor →
07 · Physical and chemical properties
Metamitron 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.
Metamitron melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 167 °C (332.6 °F) | ICSC |
Metamitron density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.6 g/cm³ | ICSC |
Metamitron solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Solubility in water, g/100ml at 20 °C: 0.17 (slightly soluble) | at 20 °C | ICSC |
Metamitron vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 6.451e-9 mmHg | at 20 °C | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
08 · Handling and storage
Metamitron storage and handling
Metamitron safe storage
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Keep in a well-ventilated room.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Planning storage for a mix of chemicals? Check Metamitron in the storage compatibility matrix →
09 · Questions
Metamitron — frequently asked questions
What is the CAS number of Metamitron?
The CAS number of Metamitron is 41394-05-2. Its EC number is 255-349-3.
What is the chemical formula of Metamitron?
The molecular formula of Metamitron is C10H10N4O and its molecular weight is 202.21 g/mol.
What does a Metamitron label have to show?
Under CLP Annex VI the label for Metamitron carries the pictograms Exclamation mark and Environment and the signal word is Warning.
Is Metamitron flammable?
CLP Annex VI assigns Metamitron 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 Metamitron a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Metamitron. 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 melting point of Metamitron?
The melting point reported for Metamitron is 167 °C (332.6 °F) (ICSC).
Nearby
Substances next to Metamitron
Keep going: substances starting with M, or search the whole database by name, CAS number, pictogram or signal word.