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4-Methoxyphenol																				Related Pages
Synonyms & Trade Names
			Hydroquinone monomethyl ether, p-Hydroxyanisole, Mequinol, p-Methoxyphenol, Monomethyl ether hydroquinone
CAS No.
			150-76-5
	RTECS No.
			SL7700000
	DOT ID & Guide

FormulaCH3OC6H4OH
	Conversion
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 5 mg/m3OSHA PEL none See Appendix G
	Measurement Methods
			None available 
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless to white, waxy solid with an odor of caramel & phenol.													
										
Molecular Weight124.2	
	Boiling Point469°F
	Melting Point135°F
	Solubility(77°F): 4%
	Vapor Pressure<0.01 mmHg
	Ionization Potential7.50 eV											
Specific Gravity1.55	
	Flash Point(oc) 270°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Combustible Solid; under certain conditions, a dust cloud can probably explode if ignited by a spark or flame.
Incompatibilities & Reactivities
			Strong oxidizers, strong bases, acid chlorides, acid anhydrides
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin, nose, throat, upper respiratory system; eye, skin burns; central nervous system depression
Target Organs
			Eyes, skin, respiratory system, central nervous system
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**Prevent skin contact
							**Eyes:**Prevent eye contact
							**Wash skin:**When contaminated
							**Remove:**When wet or contaminated
							**Change:**Daily
							**Provide:**Eyewash, Quick drench
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap flush immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			Not available.
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 1097

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Chemical Names, Synonyms and Trade Names
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CAS Numbers
RTECS Numbers
Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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