Guanidine hydrochloride solution

Sigma-Aldrich Inc

Revision date : 2026-07-15

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GHS07
Health risk rating 2
Safety risk rating 1
Environmental risk rating 1

Note: Ingredients listed on restricted chemical lists

EC/CAS

50-01-1

Name of the chemical

Guanidinium chloride

Concentration

>=50-<70

Listed in

General Information

Version

6.8

Revision date

2026-07-15

Product name

Guanidine hydrochloride solution

1.2.1 Relevant identified uses

Laboratory chemicals, Synthesis of substances

Emergency telephone

800-424-9300, +1-703- 527-3887

Icons in SDS

GHS07 M004 M010 M011 M017

Company Information

company name

Sigma-Aldrich Inc

GHS Information

Signal word

Warning

Hazard Codes

Hazard statements (CLP)

H302+H332, H315, H319, H402

Hazard statements

Code

Statements

H302+H332

Harmful if swallowed or if inhaled

Section 2

SECTION 2: Hazards identification

Other hazards

None known

Signal word

Warning

Hazard statements

H302 + H332 Harmful if swallowed or if inhaled. H315 Causes skin irritation. H319 Causes serious eye irritation. H402 Harmful to aquatic life.

Prevention

P261 Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/ eye protection/ face protection.

Response

P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. P302 + P352 IF ON SKIN: Wash with plenty of soap and 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. P332 + P313 If skin irritation occurs: Get medical advice/ attention. P337 + P313 If eye irritation persists: Get medical P362 Take off contaminated clothing and wash before reuse.

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 Acute toxicity (Oral) : Category 4 Acute toxicity : Category 4 (Inhalation) Skin irritation : Category 2 Eye irritation : Category 2A Short-term (acute) : Category 3 aquatic hazard Other hazards

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