Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

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Substance profile

Azocyclotin

Azocyclotin is colorless crystals.

CAS 41083-11-8 C20H35N3Sn 436.2 g/mol Danger

01 · Identification

What Azocyclotin is

Azocyclotin is colorless crystals. Its molecular formula is C20H35N3Sn and its molecular weight is 436.2 g/mol. It melts at 210 °C.

Under the GHS it carries the signal word Danger.

02 · Identifiers

Azocyclotin identifiers and molecular data

Azocyclotin CAS number and EC number

CAS number41083-11-8
EC number255-209-1
Index number (CLP Annex VI)050-019-00-3

Azocyclotin molecular formula and molecular weight

Molecular formulaC20H35N3Sn
Molecular weight436.2 g/mol

Other names for Azocyclotin

  • azocyclotin (ISO)
  • 1-(tricyclohexylstannyl)-1H-1,2,4-triazole

03 · GHS classification

Azocyclotin hazard classification

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Azocyclotin pictograms and signal word

Signal wordDanger

Azocyclotin hazard class and category

GHS hazard classes Azocyclotin falls into
Hazard class Category From code Pictogram
Acute toxicity - oral GHS chapter 3.1 Category 3 H301 GHS06
Acute toxicity - inhalation GHS chapter 3.1 Category 1 or 2 H330 GHS06
Skin corrosion/irritation GHS chapter 3.2 Category 2 H315 GHS07
Serious eye damage/eye irritation GHS chapter 3.3 Category 1 H318 GHS05
Specific target organ toxicity - single exposure GHS chapter 3.8 Category 3 H335 GHS07
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

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.

Azocyclotin hazard statements (H-codes)

Hazard statements assigned to Azocyclotin
CodeHazard statement
H330 Fatal if inhaled.
H301 Toxic if swallowed.
H335 May cause respiratory irritation.
H315 Causes skin irritation.
H318 Causes serious eye damage.
H400 Very toxic to aquatic life.
H410 Very toxic to aquatic life with long lasting effects.

This page lists only the codes assigned to Azocyclotin. 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 Azocyclotin

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 Azocyclotin 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

Azocyclotin precautionary statements

CLP Annex VI assigns 18 precautionary statements to Azocyclotin. 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.

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

Azocyclotin 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 азоциклокалай (ISO) 1-(трициклохексилстанил)-1 H -1,2,4-триазол
Spanish español Azociclotina (ISO) 1-(triciclohexilestannil)-1 H -1,2,4-triazol
Czech čeština azocyklotin (ISO) 1-(tricyklohexylstannyl)-1 H -1,2,4-triazol
Danish dansk azocyclotin (ISO) 1-(tricyclohexylstannyl)-1 H- 1,2,4-triazol
German Deutsch Azocyclotin (ISO) 1-(Tricyclohexylstannyl)-1 H -1,2,4-triazol
Estonian eesti asotsüklotiin (ISO) 1-(tritsükloheksüülstannüül)-1 H -1,2,4-triasool
Greek ελληνικά azocyclotin (αζωκυκλοτίνη) (ISO) 1-(τρικυκλοεξυλοκασσιτερυλο)-1 H -1,2,4-τριαζόλιο
English English azocyclotin (ISO) 1-(tricyclohexylstannyl)-1 H -1,2,4-triazole
French français azocyclotin (ISO) 1-(tricyclohexylstannyl)-1 H -1,2,4-triazole
Croatian hrvatski azociklotin (ISO) 1-(tricikloheksilstanil)-1 H -1,2,4-triazol
Italian italiano azociclotin (ISO) 1-(tricicloesilstannil)-1 H -1,2,4-triazolo
Latvian latviešu azociklotīns (ISO) 1-(tricikloheksilstannil)-1 H -1,2,4-triazols
Lithuanian lietuvių azocikloalavas (ISO) 1-(tricikloheksilstanil)-1H-1,2,4-triazolas
Hungarian magyar azociklotin (ISO) 1-(triciklohexil-ón) 1 H -1,2,4-triazol
Maltese Malti ażoċiklotin (ISO) 1-(triċikloeżilstannil)-1 H -1,2,4-triażol
Dutch Nederlands azocyclotin (ISO) 1-(tricyclohexylstannyl)-1 H -1,2,4-triazool
Polish polski azocyklocyna (ISO) 1-(tricykloheksylostannylo)-1 H -1,2,4-triazoltricykloheksylo-1 H -1,2,4-triazol-1-ilocyna
Portuguese português azocicloestanho (ISO) 1-(triciclo-hexilestanil)-1 H -1,2,4-triazole
Romanian română azociclotin (ISO) 1-(triciclohexilstanil)- 1 H -1,2,4-triazol
Slovak slovenčina azocyklocín (ISO) 1-(tricyklohexylstannyl)-1 H -1,2,4-triazol
Slovenian slovenščina azociklotin (ISO) 1-(tricikloheksilstanil)-1 H -1,2,4-triazol
Finnish suomi atsosyklotiini (ISO) 1-(trisykloheksyylistannyyli)-1 H -1,2,4-triatsoli
Swedish svenska azocyklotin (ISO) 1-(tricyklohexylstannyl)-1 H -1,2,4-triazol

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

Azocyclotin GHS label elements

Everything CLP Annex VI fixes for Azocyclotin, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.

GHS06 Skull and crossbones pictogramGHS05 Corrosion pictogramGHS09 Environment pictogram

Danger

Azocyclotin

  • Fatal if inhaled.
  • Toxic if swallowed.
  • May cause respiratory irritation.
  • Causes skin irritation.
  • Causes serious eye damage.
  • Very toxic to aquatic life.
  • Very toxic to aquatic life with long lasting effects.
  • Do not breathe dust/fume/gas/mist/vapours/spray.
  • Wash thoroughly after handling.
  • Do not eat, drink or smoke when using this product.
  • Use only outdoors or in a well-ventilated area.
  • Avoid release to the environment.
  • Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/
  • IF SWALLOWED:
  • IF ON SKIN:
  • IF INHALED:
  • IF IN EYES:
  • Immediately call a POISON CENTER/doctor/
  • Get medical advice/attention.
  • Rinse mouth.
  • If skin irritation occurs:
  • Remove contact lenses, if present and easy to do. Continue rinsing.
  • Wash with plenty of water/
  • Collect spillage.
  • Dispose of contents/container to

Supplier name, address and telephone number· Product identifier·Nominal quantity

Need this as an actual label? Open Azocyclotin in the GHS label constructor →

07 · Health hazards

Azocyclotin health hazards and exposure limits

Azocyclotin hazard summary

A strong skin and eye irritant, based on animal studies; [HSDB] A skin and respiratory tract irritant; May cause severe damage to eyes; [eChemPortal: ESIS] Rapidly hydrolyzed to cyhexatin and 1,2,4-triazole in aqueous solution; In high-dose animal studies, causes spastic gait, diarrhea, and apathy; Corrosive to rabbit skin; At doses >2 mg/kg/day causes miscellaneous adverse effects in animals, including elevated liver enzymes; Unlikely to be genotoxic; [Reference #1] See Cyhexatin. See 1,2,4-Triazole.

Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

Azocyclotin occupational exposure limits

US occupational exposure limits reported for Azocyclotin. PEL is enforceable (OSHA), REL is a recommendation (NIOSH), IDLH is the concentration at which escape becomes impossible without injury.
Limit Value Source
PEL 0.1 [mg/m3], as Sn Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
IDLH 25.0 [mg/m3], as Sn Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

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

Azocyclotin 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.

Azocyclotin melting point

Property Value Conditions Source
Melting point 210 °C (410 °F) decomposes, decomposes HSDB

Azocyclotin solubility

Property Value Conditions Source
Solubility In isopropanol 10-20, dichloromethane 20-50, n-hexane 0.1-1, toluene 2-5 (all in g/l at 20 °C). at 20 °C HSDB
In water, 0.12 mg/l @ 20 °C. at 20 °C HSDB

Azocyclotin vapor pressure

Property Value Conditions Source
Vapor pressure 4.5e-13 mmHg at 25 °C HSDB

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

09 · Questions

Azocyclotin — frequently asked questions

What is the CAS number of Azocyclotin?

The CAS number of Azocyclotin is 41083-11-8. Its EC number is 255-209-1.

What is the chemical formula of Azocyclotin?

The molecular formula of Azocyclotin is C20H35N3Sn and its molecular weight is 436.2 g/mol.

What does a Azocyclotin label have to show?

Under CLP Annex VI the label for Azocyclotin carries the pictograms Skull and crossbones, Corrosion and Environment and the signal word is Danger.

Is Azocyclotin flammable?

CLP Annex VI assigns Azocyclotin 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 Azocyclotin a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for Azocyclotin. 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 Azocyclotin?

The US occupational exposure limit reported for Azocyclotin is 0.1 [mg/m3], as Sn (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 melting point of Azocyclotin?

The melting point reported for Azocyclotin is 210 °C (410 °F), decomposes, decomposes (HSDB).

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