Note: Ingredients listed on restricted chemical lists
EC/CAS
100-97-0
Name of the chemical
Hexamethylenetetramine
Concentration
<=100
General Information
Version
5
Revision date
2026-07-06
Product name
Hexamine
Product Synonyms
HMTA; Hexamine; Methenamine; Hexamethylenetetramine
CAS No.
100-97-0
supplier name
Fisher Scientific UK
Emergency telephone
(800) 424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Fisher Scientific UK
e-mail address of the competent person responsible for the Safety Data Sheet
begel.sdsdesk@thermofisher.com
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H228, H317, H401
Hazard statements
Code
Statements
H228
Flammable solid
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Solid White Ammonia-like Emergency Overview Flammable solid. May cause an allergic skin reaction. Toxic to aquatic life. Moisture sensitive. May form combustible dust concentrations in air. Classification of the substance or mixture Flammable solids Category 2 Skin Sensitization Category 1 Acute aquatic toxicity Category 2 Label Elements
Signal word
Warning Hazard Statements H228 - Flammable solid H317 - May cause an allergic skin reaction H401 - Toxic to aquatic life
Prevention
P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking P240 - Ground and bond container and receiving equipment P261 - Avoid breathing dust/fume/gas/mist/vapors/spray P272 - Contaminated work clothing should not be allowed out of the workplace P280 - Wear protective gloves/protective clothing/eye protection/face protection
Response
P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P333 + P313 - If skin irritation or rash occurs: Get medical advice/attention P363 - Wash contaminated clothing before reuse P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish
Storage
P403 + P233 - Store in a well-ventilated place. Keep container tightly closed
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
Combustible material. May form combustible dust concentrations in air.
Health hazards
May cause an allergic skin reaction.
Environmental hazards
Toxic to aquatic life. Will likely be mobile in the environment due to its water solubility. The product is water soluble, and may spread in water systems.
2.3 Other hazards
May form explosible dust-air mixture if dispersed. Toxic to terrestrial vertebrates. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Flammable solids. Category 2 Skin Sensitization Category 1 Acute aquatic toxicity
