Prunasin

INCI: PRUNASIN

Prunasin (CAS 99-18-3) is a cosmetic cosmetic ingredient functioning as Skin conditioning (cyanogenic glycoside from *Prunus* species). 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 99-18-3 →

Auto-generated CPSR Part A draft with source citations
Function
Skin conditioning (cyanogenic glycoside from *Prunus* species)
Safety Rating
POOR

Chemistry & Identifiers

Formula
C14H17NO6
MW
295.29 g/mol
PubChem CID
119033
IUPAC Name
(2R)-2-phenyl-2-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyacetonitrile
InChIKey
ZKSZEJFBGODIJW-GMDXDWKASA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Not specifically listed for cosmetic use

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Prunasin.

Calculate MoS for your specific formulation with the MoS Calculator.

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Safety (1)
Carcinogen Classification
No indication of carcinogenicity to humans (not listed by IARC).
Source: Toxin and Toxin Target Database (T3DB)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Softener and conditioner

Expert Verdict

Expert safety assessment and concern-level summary for Prunasin.

Regulatory Flags

natural-origin

Chemical Function

Softener and conditioner

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
PRUNASIN
ChEMBL ID
CHEMBL1778417
View full pharmaceutical profile →

Frequently Asked Questions

Is Prunasin safe in cosmetics?

Prunasin has a safety rating of "POOR" in our database. EU status: permitted. US status: permitted.

Is Prunasin allowed in the EU?

Prunasin EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Prunasin do in cosmetics?

Prunasin functions as: Skin conditioning (cyanogenic glycoside from *Prunus* species). It is classified as a cosmetic ingredient in our database. CAS number: 99-18-3.

Is Prunasin used outside cosmetics?

Prunasin 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 Prunasin have different safety status in cosmetics vs industrial chemicals?

Prunasin is classified GHS Danger (H301, H360) in the chemicals database but is allowed in EU cosmetics.

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