Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- 3,4-Dihydroxybenzoic acid
- Product Code
- 37580
Regulatory Identifiers
- CAS Number
- 99-50-3 Check regulations →
Identified Uses
Laboratory chemicals, Synthesis of substances
Manufacturers & Suppliers
Sigma-Aldrich Inc.
manufacturer
3050 SPRUCE ST, ST. LOUIS MO 63103, UNITED STATES
+1 314 771-5765
Emergency Contacts
CHEMTREC (USA)
800-424-9300
24 Hours/day; 7 Days/week
CHEMTREC (International)
+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
Get a free compliance audit
Upload your SDS inventory and get a detailed compliance report
Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| 3,4-Dihydroxybenzoic acid EC: 202-760-0 | 99-50-3 | 100% | Yes |
First Aid Measures
Emergency procedures for chemical exposure incidents
After inhalation: fresh air.
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower.
After eye contact: rinse out with plenty of water. Call in ophthalmologist. Remove contact lenses.
After swallowing: immediately make victim drink water (two glasses at most). Consult a physician.
Immediate Medical Attention
Call in ophthalmologist. 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.
Carbon oxides. Combustible. Development of hazardous combustion gases or vapours possible in the event of fire.
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
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
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
3,4,5-Trihydroxybenzoic acid
CAS: 149-91-7
4-Hydroxybenzoic acid
CAS: 99-96-7
4-Chlorobenzoic acid
CAS: 74-11-3
4-Nitrobenzoic acid
CAS: 62-23-7
Benzoic acid
CAS: 65-85-0
1,4-Dimethoxybenzene
CAS: 150-78-7
3-Hydroxy-2-methylbutanoic Acid
CAS: 473-86-9
1,4-Dinitrobenzene
CAS: 100-25-4
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
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. Full contact Material: Nitrile rubber Minimum layer thickness: 0.11 mm Break through time: 480 min Material tested: Dermatril® (KCL 740 / Aldrich Z677272, Size M) Splash contact Material: Nitrile rubber Minimum layer thickness: 0.11 mm Break through time: 480 min Material tested: Dermatril® (KCL 740 / Aldrich Z677272, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses
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. 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.
protective clothing
Do not let product enter drains.
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: Strong oxidizing agents, Bases
no information available
No data available
In the event of fire: see section 5
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
The data for this section has not been processed yet.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
Waste material must be disposed of in accordance with the national and local regulations.
Leave chemicals in original containers. No mixing with other waste.
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 3,4-Dihydroxybenzoic acid?
The signal word is warning.
What is the physical form of 3,4-Dihydroxybenzoic acid?
3,4-Dihydroxybenzoic acid is a solid appearing as solid . It has no data available odor.
What is 3,4-Dihydroxybenzoic acid used for?
Laboratory chemicals, Synthesis of substances
What are the hazard statements for 3,4-Dihydroxybenzoic 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 3,4-Dihydroxybenzoic acid?
The melting point is 197 - 200 °C (387 - 392 °F) - dec. and the boiling point is No data available.