General Information
Version
6.7
Revision date
2026-07-17
Product name
3,4-Dimethyl-1H-pyrazole
CAS No.
2820-37-3
Emergency telephone
+81 (0)3 4520 9637
Icons in SDS
Company Information
company name
Merck Ltd.
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H302, H318, H412
Hazard statements
Code
Statements
H302
Harmful if swallowed
Section 2
SECTION 2: Hazards identification
Regulation (EC) No. 1272/2008 Classification of the substance or mixture
Signal word
Danger Danger
Hazard statements
H302 Harmful if swallowed. H318 Causes serious eye damage. H412 Harmful to aquatic life with long lasting effects. H318 Causes serious eye damage. H412 Harmful to aquatic life with long lasting effects.
Precautionary statements
P273 Avoid release to the environment. P280 Wear eye protection/ face protection. P280 Wear eye protection/ face protection. P305 + P351 + P338 + IF IN EYES: Rinse cautiously with water for several minutes. P310 Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/ doctor.
Response
P301 + P312 + P330 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. Rinse mouth. P305 + P351 + P338 + P310 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/ doctor. Reduced Labelling (<= 125 ml)
Supplemental label elements
none
2.3 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.
2.1 Classification of the substance or mixture
Classification (REGULATION (EC) No 1272/2008) Acute toxicity, Category 4 H302: Harmful if swallowed. Serious eye damage, Category 1 H318: Causes serious eye damage. Long-term (chronic) aquatic hazard, H412: Harmful to aquatic life with long Category 3 lasting effects.
