Note: Ingredients listed on restricted chemical lists
EC/CAS
123-91-1
Name of the chemical
1,4-dioxane
Concentration
>=0.1-<1
General Information
Version
6.12
Revision date
2026-07-30
Product name
Residual Solvent Class 2 - 1,4-Dioxane, United States Pharmacopeia (USP) Reference Standard
1.2.1 Relevant identified uses
Laboratory chemicals, Synthesis of substances
Emergency telephone
800 424 9300, +1 703 527 3887
Icons in SDS
Company Information
company name
Sigma-Aldrich Inc
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H227, H350
Hazard statements
Code
Statements
H227
Combustible liquid
Section 2
SECTION 2: Hazards identification
Other hazards
None known
Signal word
Danger
Hazard statements
H227 Combustible liquid. H350 May cause cancer.
Prevention
P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P210 Keep away from heat/ sparks/ open flames/ hot surfaces. No smoking. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection.
Response
P308 + P313 IF exposed or concerned: Get medical advice/ attention. P370 + P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
Storage
P403 + P235 Store in a well-ventilated place. Keep cool. P405 Store locked up.
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
2.1 Classification of the substance or mixture
(29 CFR 1910.1200) Hazards for the product as supplied Flammable liquids : Category 4 Carcinogenicity : Category 1B Other hazards
