Note: Ingredients listed on restricted chemical lists
EC/CAS
200-002-3/50-01-1
Name of the chemical
Guanidinium chloride
Concentration
<= 100 %
General Information
Version
6.7
Revision date
2026-07-15
Product name
Guanidine hydrochloride
CAS No.
50-01-1
REACH No
01-2119977063-35-XXXX
Emergency telephone
+44 (0)870 8200418
Icons in SDS
Company Information
company name
Merck Life Science UK Limited
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, H302+H332, H315, H319, H332
Hazard statements
Code
Statements
H302
Harmful if swallowed
Section 2
SECTION 2: Hazards identification
Labelling according Regulation (EC) No 1272/2008 as amended by GB-CLP Classification of the substance or mixture
Signal word
Warning Warning
Hazard statements
H302 + H332 Harmful if swallowed or if inhaled. H315 Causes skin irritation. H319 Causes serious eye irritation. none
Precautionary statements
P261 Avoid breathing dust. P264 Wash skin thoroughly after handling. P301 + P312 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. P302 + P352 IF ON SKIN: Wash with plenty of water. P304 + P340 + P312 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/ doctor if you feel unwell. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. none
Supplemental label elements
none Reduced Labelling (<= 125 ml) none
Other hazards
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher
ECOLOGICAL INFORMATION
The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher.
TOXICOLOGICAL INFORMATION
The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher.
2.1 Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008 as amended by GB-CLP Regulation, UK SI 2019/720, and UK SI 2020/1567 Acute toxicity, (Category 4) H302: Harmful if swallowed. Acute toxicity, (Category 4) H332: Harmful if inhaled. Skin irritation, (Category 2) H315: Causes skin irritation. Eye irritation, (Category 2) H319: Causes serious eye irritation.
