Note: Ingredients listed on restricted chemical lists
EC/CAS
50-01-1
Name of the chemical
Guanidinium chloride
Concentration
>= 90 - <= 100
General Information
Version
6.7
Revision date
2025-07-30
Product name
Guanidine hydrochloride
CAS No.
50-01-1
1.2.1 Relevant identified uses
Laboratory chemicals, Chemical for synthesis
Emergency telephone
+65 3158 1349
Icons in SDS
Company Information
company name
Sigma-Aldrich Pte Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
TechnicalService@merckgroup.com
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H302+H332, H315, H319
Hazard statements
Code
Statements
H302+H332
Harmful if swallowed or if inhaled
Section 2
SECTION 2: Hazards identification
Classification of the substance or mixture Acute toxicity (Oral) Category 4 Acute toxicity (Inhalation) Category 4 Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 2A
Signal word
Warning
Hazard statements
H302 + H332 Harmful if swallowed or if inhaled. H315 Causes skin irritation. H319 Causes serious eye irritation.
Prevention
P261 Avoid breathing dust. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this prod- uct. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/ eye protection/ face pro- tection.
Response
P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. P304 + P340 + P312 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/ doctor if you feel unwell. P332 + P313 If skin irritation occurs: Get medical ad- vice/ attention. P337 + P313 If eye irritation persists: Get medical ad-
Disposal
P501 Dispose of contents/ container to an approved waste disposal plant.
Other hazards which do not result in classification
None known.
2.1 Classification of the substance or mixture
Acute toxicity (Oral) : Category 4 Acute toxicity (Inhalation) : Category 4 Skin corrosion/irritation : Category 2 Serious eye damage/eye : Category 2A irritation
