Note: Ingredients listed on restricted chemical lists
EC/CAS
203-806-2/110-82-7
Name of the chemical
Cyclohexane
Concentration
>=90-< 20%
General Information
Version
7.4
Revision date
2026-01-13
Product name
sec-Butyllithium solution
REACH No
This
Emergency telephone
+(47)-22591300, +(47)-21930678
Icons in SDS
Company Information
company name
Merck Life Science AS
e-mail address of the competent person responsible for the Safety Data Sheet
TechnicalService@merckgroup.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H225, H250, H260, H304, H314, H318, H336, H400, H410
Hazard statements
Code
Statements
H225
Highly Flammable liquid and vapour
Section 2
SECTION 2: Hazards identification
Regulation (EC) No. 1272/2008 Classification of the substance or mixture
Signal word
Danger Danger
Hazard statements
H225 Highly flammable liquid and vapour. H250 Catches fire spontaneously if exposed to air. H260 In contact with water releases flammable gases which may ignite spontaneously. H304 May be fatal if swallowed and enters airways. H314 Causes severe skin burns and eye damage. H336 May cause drowsiness or dizziness. H410 Very toxic to aquatic life with long lasting effects. H250 Catches fire spontaneously if exposed to air. H304 May be fatal if swallowed and enters airways. H314 Causes severe skin burns and eye damage.
Precautionary statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P231 + P232 Handle and store contents under inert gas. Protect from moisture. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P330 + P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P370 + P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
Response
P301 + P330 + P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P304 + P340 + P310 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P370 + P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
Hazardous Ingredients
Cyclohexane sec-Butyllithium 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.
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 (REGULATION (EC) No 1272/2008) Flammable liquids, Category 2 H225: Highly flammable liquid and vapour. Pyrophoric liquids, Category 1 H250: Catches fire spontaneously if exposed to air. Substances and mixtures, which in H260: In contact with water releases contact with water, emit flammable flammable gases which may ignite gases, Category 1 spontaneously. Skin corrosion, Sub-category 1B H314: Causes severe skin burns and eye damage. Serious eye damage, Category 1 H318: Causes serious eye damage. Specific target organ toxicity - H336: May cause drowsiness or dizziness. single exposure, Category 3, Central nervous system Aspiration hazard, Category 1 H304: May be fatal if swallowed and enters airways. Short-term (acute) aquatic hazard, H400: Very toxic to aquatic life. Category 1 Long-term (chronic) aquatic hazard, H410: Very toxic to aquatic life with long Category 1 lasting effects.