Hydroquinone monomethyl ether

Synonyms: 4-Methoxyphenol, MEHQ

SECTION 1: Identification of the substance/mixture and of the company/undertaking
Chemical Name Hydroquinone monomethyl ether
Product Form Substance
Catalogue No. AL2476
CAS Number 150-76-5
EC Number 205-769-8
EC Index Number 604-005-00-4
Grade 99% For Synthesis
HSN Code 29094900
Molecular Formula C7H8O2
SECTION 1: Identification of the substance/mixture and of the company/undertaking
1.1 Product identifier
Chemical Name Hydroquinone monomethyl ether
Catalogue No. AL2476
Product form Substance
CAS Number 150-76-5
EC Number 205-769-8
Grade 99% For Synthesis
EC Index Number 604-005-00-4
Chemical Formula C7H8O2
HSN Code 29094900
Synonyms 4-Methoxyphenol, MEHQ
Chemical Structure -
1.2 Relevant identified uses of the substance or mixture and uses advised against
Use of the substance/mixture Polymerization inhibitor
Uses advised against Not specified
1.3 Details of the supplier of the safety data sheet
Company identification Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 Emergency Contact Details
Phone / e-Mail Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
SECTION 2: Hazards identification
2.1 Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008 Acute Tox. 4; Skin Sens. 1; Eye Irrit. 2
Classification source ECHA C&L Inventory via PubChem CID 9015 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 Label elements
Hazard pictograms Irritant
Signal word Warning
Hazard statements H302: Harmful if swallowed; H317: May cause an allergic skin reaction; H319: Causes serious eye irritation
2.3 Other hazards
Other hazards May cause skin sensitization.
SECTION 3: Composition/information on ingredients
3.1 Substance
Name Hydroquinone monomethyl ether
CAS No. 150-76-5
SECTION 4: First aid measures
4.1 Description of first aid measures
First-aid measures after inhalation If this chemical has been inhaled, remove the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the person warm and at rest.
First-aid measures after skin contact If this chemical contacts the skin, immediately flush the contaminated skin with soap and water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. If irritation persists after washing, get medical attention.
First-aid measures after eye contact If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
First-aid measures after ingestion If this chemical has been swallowed, get medical attention immediately.
4.2 Most important symptoms and effects, both acute and delayed
Symptoms relating to use Skin irritation, respiratory irritation, eye irritation.
4.3 Indication of any immediate medical attention and special treatment needed
General information Treat symptomatically. Show this safety data sheet to the treating physician.
SECTION 5: Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Unsuitable extinguishing media Not specified
5.2 Special hazards arising from the substance or mixture
Special procedures Dust explosion possible if in powder or granular form, mixed with air.
5.3 Advice for firefighters
Protection during firefighting Do not enter fire area without proper protective equipment, including respiratory protection.
SECTION 6: Accidental release measures
6.1.1 For non-emergency personnel
Emergency procedures Contain spill and collect using inert absorbent material. Dispose of in accordance with local regulations.
6.3 Methods and material for containment and cleaning up
Methods for cleaning up Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations.
6.4 Reference to other sections
Reference Not specified
SECTION 7: Handling and storage
7.1 Precautions for safe handling
Precautions for safe handling Avoid contact with skin and eyes. Use gloves and safety goggles when handling.
Hygiene measures Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditions Separated from strong oxidants, strong bases, acid anhydrides and acid chlorides.
SECTION 8: Exposure controls/personal protection
8.2 Exposure controls
Hand protection Protective gloves (e.g. nitrile rubber)
Eye protection Chemical safety goggles or safety glasses
Skin and body protection Wear suitable protective clothing
Respiratory protection For nuisance exposures use type P95 (US) or type P1 (EU EN 143) particle respirator. For higher level protection use type OVAGP99 (US) or type ABEK-P2 (EU EN 143) respirator cartridges.
SECTION 9: Physical and chemical properties
9.1 Information on basic physical and chemical properties
Physical state Solid
Colour White
Odour Odor of caramel and phenol
Odour threshold Not determined
pH value Not applicable
Relative evaporation rate (butylacetate=1) Not determined
Melting point 54 °C
Freezing point Not determined
Boiling point 253 °C
Flash point 270 °F (132 °C) (Open Cup)
Auto-ignition temperature 790 °F (421 °C)
Decomposition temperature Not determined
Flammability (solid, gas) Combustible
Vapour pressure 6.75X10-3 mm Hg at 20 °C
Relative vapour density at 20°C 4.3 (Air = 1)
Density 1.55 at 20 °C/20 °C
Solubility In water, 19,500 mg/L at 25 °C
Log Pow 1.41 at 25 °C
Viscosity, kinematic Not determined
Viscosity, dynamic Not determined
Explosive properties Not explosive
Oxidising properties Not oxidizing
Explosive limits Not applicable
SECTION 10: Stability and reactivity
10.1 Reactivity
Reactivity Stable under normal conditions. Avoid strong oxidizing agents.
10.2 Chemical stability
Chemical stability Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
Possibility of hazardous reactions Reacts with strong oxidants, strong bases, acid anhydrides and acid chlorides. The solution in water is a weak acid.
10.4 Conditions to avoid
Conditions to avoid Avoid contact with incompatible materials and excessive heat.
10.5 Incompatible materials
Incompatible materials Strong oxidizing agents, strong acids.
10.6 Hazardous decomposition products
Hazardous decomposition products When heated to decomposition it emits acrid smoke and fumes.
SECTION 11: Toxicological information
11.1 Information on toxicological effects
Acute toxicity LD50 Rat oral 1600 mg/kg; LD50 Mouse ip 250 mg/kg; LD50 Rabbit ip 720-790 mg/kg
Skin corrosion/irritation Not classified (based on available data)
Serious eye damage/irritation H319: Causes serious eye irritation
Respiratory or skin sensitisation H317: May cause an allergic skin reaction
Germ cell mutagenicity Not classified (based on available data)
Carcinogenicity Not classified (based on available data)
Specific target organ toxicity (single exposure) Not classified (based on available data)
Specific target organ toxicity (repeated exposure) Not classified (based on available data)
SECTION 12: Ecological information
12.1 Toxicity
Toxicity information Not specified
12.2 Persistence - degradability
Persistence - degradability Not specified
12.3 Bioaccumulative potential
Bioaccumulative potential Not specified
12.4 Mobility in soil
Mobility in soil Not specified
12.6 Other adverse effects
Environmental precautions Not specified
SECTION 13: Disposal considerations
13.1 Waste treatment methods
Additional Info Dispose of contents/container in accordance with local, regional, national and international regulations.
SECTION 14: Transport information
14.1 UN number
UN-No. (ADR) Not assigned
UN-No. (IMDG) Not assigned
UN-No. (IATA) Not assigned
UN-No. (ADN) Not assigned
UN-No. (RID) Not assigned
14.2 UN proper shipping name
Proper Shipping Name (ADR) Not regulated
Proper Shipping Name (IMDG) Not regulated
Proper Shipping Name (IATA) Not regulated
Proper Shipping Name (ADN) Not regulated
Proper Shipping Name (RID) Not regulated
14.3 Transport hazard class(es)
Transport hazard class(es) Not classified
14.4 Packing group
Packing group (ADR) Not classified
Packing group (IMDG) Not classified
Packing group (IATA) Not classified
Packing group (ADN) Not classified
Packing group (RID) Not classified
14.5 Environmental hazards
Dangerous for the environment Not specified
Marine pollutant Not specified
Other information No supplementary information available
SECTION 15: Regulatory information
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
15.1.1 EU-Regulations Not specified
SECTION 16: Other Information
Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a guarantee or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text.