Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- 4-Hydroxyphenylacetic acid
- Product Code
- H50004
- Chemical Name
- 4-Hydroxyphenylacetic acid
Regulatory Identifiers
- CAS Number
- 156-38-7 Check regulations →
Identified Uses
Laboratory chemicals, Synthesis of substances
Uses advised against
The product is being supplied under the TSCA R&D Exemption (40 CFR Section 720.36). It is the recipient's responsibility to comply with the requirements of the R&D exemption. The product may not be used for a non-exempt commercial purpose under TSCA unless appropriate consent is granted in writing by MilliporeSigma.
Manufacturers & Suppliers
Sigma-Aldrich Inc.
manufacturer
3050 SPRUCE ST ST. LOUIS MO 63103 UNITED STATES
+1 314 771-5765
Emergency Contacts
CHEMTREC
800-424-9300
24 Hours/day; 7 Days/week
CHEMTREC
+1-703-527-3887
24 Hours/day; 7 Days/week
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
Hazard Classifications
GHS Pictograms
GHS07
Hazard Statements
Precautionary Statements
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Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| p-Hydroxyphenylacetic acid | 156-38-7 | 80 - 100% | No |
First Aid Measures
Emergency procedures for chemical exposure incidents
fresh air.
Take off immediately all contaminated clothing. Rinse skin with water/ shower.
rinse out with plenty of water. Call in ophthalmologist. Remove contact lenses.
immediately make victim drink water (two glasses at most). Consult a physician.
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
Water, Foam, Carbon dioxide (CO2), Dry powder
For this substance/mixture no limitations of extinguishing agents are given.
Combustible. Development of hazardous combustion gases or vapours possible in the event of fire.
No data available
Firefighter Protection
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
Avoid inhalation of dusts. Avoid substance contact. Ensure adequate ventilation. Evacuate the danger area, observe emergency procedures, consult an expert.
Do not let product enter drains.
Take up dry. Clean up affected area.
Related Products
Similar products with comparable safety profiles
4-Hydroxybenzoic acid
CAS: 99-96-7
4-(Hydroxymethyl)phenoxyacetic acid
CAS: 68858-21-9
Phenylacetic acid
CAS: 103-82-2
4-Acetamidophenol
CAS: 103-90-2
3,4-Dihydroxy-DL-phenylalanine
CAS: 63-84-3
3,4-Dihydroxybenzoic acid
CAS: 99-50-3
3,4-Dihydroxybenzoic acid
CAS: 99-50-3
3-(3,4-Dihydroxyphenyl)acrylic acid
CAS: 331-39-5
Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
For precautions see section 2.2.
Tightly closed. Dry.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
No data available
Material : Nitrile rubber, Break through time : 480 min, Glove thickness : 0.11 mm, Protective index : Full contact, Manufacturer : KCL 741 Dermatril® L; Material : Nitrile rubber, Break through time : 480 min, Glove thickness : 0.11 mm, Protective index : Splash contact, Manufacturer : KCL 741 Dermatril® L; Remarks : This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN 16523-1 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de).
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses
required when dusts are generated. Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system. Recommended Filter type: Filter type P2. The entrepreneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented.
protective clothing
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
The product is chemically stable under standard ambient conditions (room temperature).
The following applies in general to flammable organic substances and mixtures: in correspondingly fine distribution, when whirled up a dust explosion potential may generally be assumed.
Violent reactions possible with: - Oxidizing agents - Bases - Acid anhydrides - Acid chlorides
no information available
No data available
In the event of fire: see section 5
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
Ecotoxicity
Persistence and degradability
Bioaccumulative potential
Mobility in soil
Other adverse effects
The product does not contain, nor was it manufactured with, Class I or Class II ozone-depleting substances as defined by the U.S. Clean Air Act Section 602.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
Leave chemicals in original containers. No mixing with other waste.
Waste material must be disposed of in accordance with the national and local regulations.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
Regulatory Information
Chemical regulations, safety assessments, and compliance status
Frequently Asked Questions
Common questions about safety, handling, and properties
What is the hazard signal word for 4-Hydroxyphenylacetic acid?
The signal word is warning.
What is the physical form of 4-Hydroxyphenylacetic acid?
4-Hydroxyphenylacetic acid is a solid appearing as powder with beige color.
What is 4-Hydroxyphenylacetic acid used for?
Laboratory chemicals, Synthesis of substances
What are the hazard statements for 4-Hydroxyphenylacetic acid?
This substance has 3 hazard statements:
- H315: Causes skin irritation.
- H319: Causes serious eye irritation.
- H335: May cause respiratory irritation.
What is the melting point of 4-Hydroxyphenylacetic acid?
The melting point is 298 - 304 °F / 148 - 151 °C .