Ammonia

CAS 7664-41-7·H3N·17.03 g/mol·9 listings across 6 jurisdictions.

Also known as azane, ammonia, ammoniac, amoniaco … +15 more

CAS
7664-41-7
Mol. Weight
17.03000 g/mol
InChIKey
QGZKDVFQNNGYKY-UHFFFAOYSA-N
SMILES
N
PubChem CID
222

Regulatory
Status

9 entries across 6 jurisdictions. Sourced from EU, US, UK and international regulatory databases.

Overall compliance

Restricted — high concern

High-concern classification in 5 of 9 frameworks, across 6 jurisdictions.

United StatesUnited States[US]
FDA Indirect Food Additives (21 CFR 170-199)
FDA 21CFR
Listed
View →

FDA indirect food additives (21 CFR); a listing means the substance is permitted in food-contact materials under defined conditions.

{
  "source": "FDA Indirect Additives (21 CFR 175-178)",
  "cas_number": "7664-41-7",
  "chemical_name": "AMMONIA"
}
TSCA Inventory
TSCA
Listed
View →

The U.S. TSCA Inventory; a listing means the substance is an existing chemical permitted in U.S. commerce.

{
  "name": "Ammonia",
  "flags": "",
  "status": "active",
  "cas_number": "7664-41-7",
  "risk_level": "low"
}
European UnionEuropean Union[EU]
CLP Regulation (EC) 1272/2008
CLP
Listed
View →

The EU's classification, labelling and packaging rules; a listing assigns the substance harmonised hazard classes such as carcinogenic, toxic, or corrosive.

{
  "source": "ECHA CLP Annex VI (harmonised C&L)",
  "index_no": "007-001-00-5",
  "ec_number": "231-635-3",
  "cas_number": "7664-41-7",
  "hazard_class": "Flam. Gas 2\nPress. Gas\nAcute Tox. 3 *\nSkin Corr. 1B\nAquatic Acute 1",
  "chemical_name": "ammonia, anhydrous",
  "hazard_statements": "H221\nH331\nH314\nH400"
}
EU Cosmetics – Restricted substances (Annex III)
EU COSM RESTRICTED
Listed
View →

EU restricted cosmetic substances (Annex III); a listing means the substance is allowed only under specified conditions and concentration limits.

{
  "annex": "III",
  "source": "EU CosIng Annex III",
  "function": "",
  "ec_number": "231-635-3 / 215-647-6",
  "inci_name": "",
  "reference": "",
  "cas_number": "7664-41-7",
  "restriction": "6% (as NH3)",
  "chemical_name": "AMMONIA"
}
EU REACH Registered Substances
EU REACH REGISTERED
Listed
View →
{
  "source": "EU REACH Registered Substances (ECHA CHEM)",
  "ec_number": "231-635-3",
  "cas_number": "7664-41-7",
  "chemical_name": "Ammonia, anhydrous"
}
United KingdomUnited Kingdom[UK]
GB Mandatory Classification & Labelling
GB MCL
Listed
View →

Great Britain's mandatory classification & labelling; a listing assigns the substance legally binding GB hazard classifications.

{
  "source": "GB MCL (HSE)",
  "ec_number": "231-635-3",
  "cas_number": "7664-41-7",
  "hazard_class": "Flam. Gas 2; Press. Gas; Acute Tox. 3 *; Skin Corr. 1B; Aquatic Acute 1",
  "chemical_name": "ammonia, anhydrous",
  "hazard_statements": "H221; H331; H314; H400"
}
International[INTERNATIONAL]
Not ListedNot listed in any International framework on record.
CanadaCanada[CANADA]
Canada Domestic Substances List
CANADA DSL
Listed
View →

Canada's inventory of substances already in commerce; a listing means it can be manufactured or imported without new-substance notification.

{
  "source": "Canada Domestic Substances List (DSL)",
  "cas_number": "7664-41-7",
  "identifier": "7664-41-7",
  "publication": "Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311 (http://central.bac-lac.gc.ca/.redirect?app=cangaz&id=14339&lang=eng)",
  "identifier_2": "",
  "chemical_name": "Ammonia",
  "additional_information": "This substance is on the Domestic Substances List (DSL). \n \nThis substance was added to the DSL as an “Existing Substance” given that it meets the criteria set out in the Canadian Environmental Protection Act, 1999 for substances that were in commerce in Canada between 1984 and 1986."
}
AustraliaAustralia[AUSTRALIA]
Australia Safe Work GHS Classification (HCIS)
AU SWA GHS
Listed
View →

Australia's official workplace hazard classification; a listing assigns the substance harmonised GHS health and physical-hazard categories.

{
  "source": "Safe Work Australia HCIS (via PubChem GHS Classification)",
  "cas_number": "7664-41-7",
  "pictograms": [],
  "pubchem_cid": "222",
  "signal_word": "Danger",
  "chemical_name": "NH3",
  "hazard_statements": [
    "H221: Flammable gas [Danger Flammable gases]",
    "H302: Harmful if swallowed [Warning Acute toxicity, oral]",
    "H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]",
    "H331: Toxic if inhaled [Danger Acute toxicity, inhalation]",
    "H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]"
  ]
}
New ZealandNew Zealand[NEW ZEALAND]
Not ListedNot listed in any New Zealand framework on record.
FranceFrance[FRANCE]
Not ListedNot listed in any France framework on record.
SwitzerlandSwitzerland[SWITZERLAND]
Not ListedNot listed in any Switzerland framework on record.
NE-Atlantic[NE-ATLANTIC]
Not ListedNot listed in any NE-Atlantic framework on record.
JapanJapan[JAPAN]
Japan NITE GHS Classification
JP NITE GHS
Listed
View →

Japan's official GHS hazard classification (NITE); a listing assigns the substance harmonised GHS health and physical-hazard categories.

{
  "source": "Japan NITE-CMC (via PubChem GHS Classification)",
  "cas_number": "7664-41-7",
  "pictograms": [],
  "pubchem_cid": "222",
  "signal_word": "Danger",
  "chemical_name": "NH3",
  "hazard_statements": [
    "Not Classified",
    "H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]",
    "H220: Extremely flammable gas [Danger Flammable gases]",
    "H280: Contains gas under pressure; may explode if heated [Warning Gases under pressure]",
    "H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]",
    "H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]",
    "H332: Harmful if inhaled [Warning Acute toxicity, inhalation]",
    "H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]",
    "H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]",
    "H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]",
    "H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]",
    "H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]"
  ]
}

Data as of 2026-10-26·All sources and refresh dates

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