Is NITROUS ACID safe in cosmetics?
NITROUS ACID has a safety rating of "GOOD" in our database. EU status: permitted.
Good
Cosmetic Ingredient
NITROUS ACID
Also known as: EINECS 231-963-7, Kyselina dusite, UNII-T2I5UM75DN, HNO2, [NO(OH)]
NITROUS ACID (CAS 7782-77-6) is a cosmetic cosmetic ingredient functioning as Humectant, Solvent. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and pharmaceutical data.
View industrial chemical safety profile for CAS 7782-77-6 →
Auto-generated CPSR Part A draft with source citations
Cross-Vertical Regulatory Divergence
NITROUS ACID is classified GHS Danger (H300, H314, H318, H400) in the chemicals database but is allowed in EU cosmetics.
Source: Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
Function
Humectant, Solvent
Safety Rating
GOOD
Chemistry & Identifiers
IUPAC Name
nitrous acid
InChIKey
IOVCWXUNBOPUCH-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
US US Status
Not specifically regulated
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Safety (1)
Carcinogen Classification
Ingested nitrate or nitrite under conditions that result in endogenous nitrosation is probably carcinogenic to humans (Group 2A). (L135)
Source: Toxin and Toxin Target Database (T3DB)
Expert Verdict
Expert safety assessment and concern-level summary for NITROUS ACID.
Regulatory Flags
cosing-sourced
eu-permitted
humectant
needs-enrichment
Known Synonyms
EINECS 231-963-7
Kyselina dusite
UNII-T2I5UM75DN
HNO2
[NO(OH)]
Regulatory Lists
Canada; pharmaceutical
Canada; pharmaceutical
Cross-Vertical Safety Context
Same-CAS public records found in pharmaceutical data.
SOURCE
ChEMBL / DrugCentral / FAERS
DB_PHARMA CAS match
Pharmaceutical Data
Same-CAS rows from the pharmaceutical spoke database.
Compound
NITROUS ACID
ChEMBL ID
CHEMBL1161681
Max Phase
4
Frequently Asked Questions
Is NITROUS ACID allowed in the EU?
NITROUS ACID EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does NITROUS ACID do in cosmetics?
NITROUS ACID functions as: Humectant, Solvent. It is classified as a cosmetic ingredient in our database. CAS number: 7782-77-6.
Is NITROUS ACID used outside cosmetics?
NITROUS ACID also appears in industrial chemical safety and pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Does NITROUS ACID have different safety status in cosmetics vs industrial chemicals?
NITROUS ACID is classified GHS Danger (H300, H314, H318, H400) in the chemicals database but is allowed in EU cosmetics.
Compliance Tools
Check NITROUS ACID compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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