Also known as: 1-Hexyl-1,3,3,3-tetramethyl-1-((trimethylsilyl)oxy)disiloxane
CAS 1873-90-1
Trisiloxane, 3-hexyl-1,1,1,3,5,5,5-heptamethyl- (CAS 1873-90-1) is a chemical substance with GHS signal word Warning; key hazard signal: H332; H413. Key regulatory status: REACH registered, cosmetic ingredient cross-reference; source data from ECHA CLP, EPA ToxValDB, ECHA REACH.
CAS, identifiers, formula, and alternate names for the matched substance record.
EU harmonized hazard classification, hazard statements, pictograms, and signal word.
| Hazard Class | H-Statements | Pictograms | Signal |
|---|---|---|---|
| Acute Tox. 4 *; Aquatic Chronic 4 | H332; H413 | GHS07 | Warning |
Toxicology endpoints rendered from public NOAEL study rows.
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| 1.12 | mg/L | LC50 | Inhalation | - | NTP_ICE_acute_inhalation |
Showing 1 of 1 studies
Registration status from the ECHA REACH registered substances database.
| Status | Name | EC Number | Link |
|---|---|---|---|
| Registered | 3-hexylheptamethyltrisiloxane | 428-700-5 | ECHA overview → |
Same-CAS cosmetic ingredient record for cross-vertical context.
Trisiloxane, 3-hexyl-1,1,1,3,5,5,5-heptamethyl- (CAS 1873-90-1) is classified under EU CLP Annex VI as Acute Tox. 4 *; Aquatic Chronic 4 with signal word Warning. Hazard statements: H332; H413. Source: EU CLP Annex VI (ECHA).
Trisiloxane, 3-hexyl-1,1,1,3,5,5,5-heptamethyl- has 1 NOAEL study in the database. The lowest reported value is 1.12 mg/L via Inhalation. Source: NTP_ICE_acute_inhalation.
Yes, Trisiloxane, 3-hexyl-1,1,1,3,5,5,5-heptamethyl- is also indexed as a cosmetic ingredient under the name Hexyl Methicone. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.
Safety data is sourced from ECHA CLP Annex VI, EPA ToxValDB, EPA DSSTox, ECHA REACH, CosIng / Ingredients DB. All data traces to primary regulatory sources and is updated from official government databases.
Trisiloxane, 3-hexyl-1,1,1,3,5,5,5-heptamethyl- also appears in cosmetics databases.